February 2025 – High Power Blue, Green, Red, Infrared Laser Modules

Featured Use of 980nm Infrared Laser Diode Module

When advanced 980nm infrared laser diode tech is applied for the creation of a night version professional dot measuring tool, it is being made into a real device of a 980nm infrared laser diode module. After integration with a qualified optic lens and thermal emitting system inside a durable metal housing tube, it always enables quite easy carrying, and quick reaching and good direction infrared reference dot projection for night version and dark working environments as well. Cooperating with night version device or equipment, either it is used for close or long distance, this 980nm infrared dot laser enables long lasting and good directivity infrared dot measurement for all night version fields conveniently.
The basic use of a 980nm infrared laser diode module applies an AC/DC adapter as its electric power source. The adoption of an import 980nm infrared laser diode enables high energy density and high penetration infrared laser light source emission at long extending distance. It should be working continuously with other night version device or equipment. Owing to its superior nice thermal emitting from a metal heat sink cooling system, even though it is operating with high power range of 500mW to 1000mW, this infrared dot laser still keeps work with superior nice laser beam stability, and ultra long time lasting infrared reference dot projection in proper use. it always enables long time lasting infrared dot alignment and long serving lifetime in proper use.
Being made with ultra compact size tube design of 16mm and 26mm diameter anodized aluminum alloy housing tube design, 980nm infrared laser diode module always enables convenient installation and application in various night version device and systems. It enables high penetration and highly powerful infrared laser radiation from a qualified glass coated lens. In addition, after its special design of adjustable focus lens design, after its immediate infrared laser light source generation, this infrared dot laser still gets increasing accuracy and focused infrared reference dot projection in distance.
Applications:
Optical communication field: being made as the pump laser source of fiber laser or erbium-doped fiber amplifier (EDFA), 980nm infrared laser provides energy for erbium ions in optical fiber to achieve amplification and long-distance transmission of optical signals. It is an import part of modern communication networks, which is used in low-noise fiber amplifiers in cable television (CATV) networks to ensure high-quality transmission of television signals.
Industrial field: 980nm infrared laser module can be used for infrared heating, such as plastic welding, metal heating, curing and other occasions. Featured by precise focusing, it can also be used in precision manufacturing, electronic component testing, material surface treatment and other fields. It can be used as a light source for laser sensors in industrial automation detection.
Medical field: The penetration depth of 980nm wavelength infrared laser diode module in biological tissue is moderate, which is suitable for a variety of medical treatments, such as laser therapy.
Security monitoring field: The high-power output 980nm infrared laser can provide a powerful light source for the laser lighting system, which is suitable for vehicle-mounted, security monitoring and other scenes to achieve long-distance monitoring.

Efficient Use of 820nm Infrared Laser Diode Module

With the process of constant technical innovation of 820nm infrared laser diode tech, on consideration of practical use for all night version dot indication and measurement works, professionals and engineers are getting the chance to operate a long wavelength made device of a 820nm infrared laser diode module. In a lot of work fields, including medical therapy, monitoring system and industrial inspection work etc, on the basis of correct use of operating voltage electric power source and proper installation or integration with night version device, this infrared dot laser enables ultra clear, precise and accurate infrared dot generation for all night version illumination fields conveniently.
With the continuous expansion of the security monitoring market, there is an increasing need of high performance infrared fill light equipment. Featured by good concealment and good fill light effect, 820nm infrared laser diode module gets even wider applications. In the medical field, with the development of near infrared phototherapy and bioimaging technology, its application will also be more extensive. Featured by its high level of laser beam stability and good quality infrared laser beam emission, it always provides engineers quite nice infrared laser light source for those of intelligent application fields.
Being made with AC/DC adapter, this glass coated lens made 820nm infrared laser diode module enables high density and high transmittance infrared laser light source generation at long extending distances far away. Owing to its low laser beam divergence angle and high penetration beam emission, cooperating with its adjustable focus optic lens design, this IR laser gets high concentration infrared laser light conversion into a ultra clear and precise infrared dot generation in continuous use. When it is pointing onto a large variety of raw material surfaces, infrared dot laser still maintains ultra clear and precise infrared laser dot radiation and measurement as expected.

Applications:

Security and monitoring fields: At night or in low light environments, 820nm infrared laser diode module is installed near the surveillance camera as an infrared fill light source. According to correct use of output power and operating voltage, after proper adjustment of irradiation angle and position, it can obtain a clear monitoring picture.
Laser medical field: In near infrared phototherapy, infrared laser is pointing onto the treatment part with proper setting up of irradiation time and power density. When used for biological tissue imaging, it needs to be coordinated with the imaging equipment. The infrared light emitted by the module irradiates the biological tissue, and the light reflected or scattered by the tissue is captured by the imaging equipment to generate an image.
Military field: 820nm infrared laser module is used in conjunction with the corresponding night vision equipment or aiming system when installed on weapons and equipment. It can help soldiers to observe the target area for aim and shoot. In military reconnaissance, its concealment can be used to detect and locate enemy targets.
Industrial detection: after fixing 820nm infrared laser diode module in a suitable position when detecting internal defects of materials, infrared laser light source emitted evenly illuminates the material being tested, and detects the internal structure by analyzing the infrared light reflected or transmitted by the surface of the material. When used for object identification and positioning, it cooperates with industrial cameras or other sensors to identify the position and shape of objects by reflecting or blocking infrared light.

808nm Infrared Laser Diode Module for Industrial Manufacturing

Comparing with any other visible laser devices, the usual use of a long wavelength device of a 808nm infrared laser diode module is projecting high electro-optical conversion efficiency infrared laser light emission from beam aperture. Being made with an import 808nm infrared laser diode and a qualified optic lens as core components inside its highly durable housing tube, it is able to work with high energy concentration infrared laser light source emission, and ultra clear and precise infrared reference dot projection in continuous use. When this compact structure designed infrared dot laser gets proper installation, it takes the lowest power consumption and achieves ultra clear infrared reference dot projection in continuous use.

In practical precise dot measuring work fields, this 808nm infrared laser diode module maintains constant wavelength output power of 808nm, with small wavelength drift. When it gets constant power source from an AC/DC adapter, without any serious relying on manual labor force input, it is able to make continuous infrared laser beam emission, assures pumping efficiency and laser output stability. In process of industrial dot positioning works, such as precise mold manufacturing, this 808nm infrared dot laser can ensure laser processing accuracy and reduce defective rate.
Being made with a qualified glass coated lens and adjustable focus optic lens design inside its durable metal housing tube, this 808nm infrared laser diode module is working well with small beam divergence angle infrared laser beam emission, and highly uniform energy distribution. After its easy screw of adjustable focus optic lens, once it gets high concentration infrared laser light emission, it makes highly efficient conversion of increasing accuracy and brightness infrared reference dot projection at different work distances. In practical laser marking and laser welding works, this 808nm infrared dot laser is working well with highly clear infrared dot projection onto different raw material surfaces. It is also making clear dot positioning for welding work and assuring welding quality as expected.
Being made with good thermal emitting system and advanced manufacturing technology, equipped with good heat dissipation and control circuits etc, this long wavelength 808nm infrared laser diode module maintains stable IR dot indication, reduced production cost and improved work efficiency. In all large scale industrial production work, this ultra compact structure made laser device enables quite easy integration into automated production equipment or robot arm systems. According to proper adjustment of the position and angle, this infrared alignment laser realizes accurate dot measurement for all automated production lines perfectly.

795nm Infrared Laser Diode Module For Industrial Field

Infrared laser modules have got a lot of advantages and good industrial adaptability in the industrial field. It generates high directivity infrared laser beam emission and maintains a concentrated IR beam during long distance transmission. In industrial positioning system, it can help operator make accurate indicating of the target position with minimal error with low energy dispersion. Usually it gets special design of adjustable focus lens, after high energy concentration on a small spot, it is able to be used high efficiency and high quality raw material processing works, including laser welding, laser cutting work etc.

After connect with AC/DC adapter, 795nm infrared laser diode module emits a single wavelength of 795nm IR laser light with a narrow spectral width, and less effect by ambient light. After its proper use of electric power source with correct operating voltage, on the basis of its good monochromaticity, it can be used for accurate spectral analysis and color recognition so as to improve detection accuracy for industrial inspection. Owing to its noncontact infrared laser light source generation, the real raw material processing work gets no contact with object during processing or detection, avoiding contact measurement or processing to damage the surface of the object. It is suitable for fragile, deformable or surface-demanding workpieces.

Industrial adaptability:

Strong environmental adaptability: The 795nm infrared laser diode module can work stably in a wide range of temperature and humidity, and has a certain resistance to dust, oil, etc. For example, in harsh environments such as foundries, it can still be used for infrared dot positioning and detection despite dust and high temperature.

Easy to integrate: Being made with small size and light weight, 795nm infrared laser is easy to integrate into various industrial equipment and automated production lines, which can be flexibly installed in different positions. Cooperating with robotic arms, conveyor belts and other equipment, it can achieve automated operation.

Controllable precision: By controlling the parameters of the 795nm infrared laser diode module and coordinating with high-precision optical components and control systems, micron-level or even higher precision positioning and processing can be achieved so as to meet the needs of precision industrial production.

High safety: 795nm infrared laser is invisible IR light, which is relatively less harmful to human eyes, and safety protection devices such as light curtain sensors and guardrails can be installed to further improve safety in industrial production.

Applications:
Precision machining: In the microelectronics industry, 795nm infrared laser can be used micron-level marking, cutting, welding and other operations. Featured by high energy density and ultra fine IR dot diameter, it can achieve high-precision machining on tiny electronic components, improving production efficiency and product quality.

Positioning and calibration: In automated production lines, it can be used for workpiece positioning and assembly calibration to ensure the accuracy and consistency of the production process. For example, in the fields of automobile manufacturing and machinery manufacturing, it provides accurate position references for robots, helps robots achieve autonomous navigation and precise grasping, and improves production efficiency and flexibility.

Measurement and detection: 795nm infrared laser light source can be used to measure parameters such as length, angle, shape, etc., providing strong support for product quality control. In industrial detection, such as material surface defect detection, crack detection, etc., its good IR laser beam quality can clearly show tiny defects on the surface of the material.

Laser heating: 795nm infrared laser diode module can be used as a point-focused heating source for local heating treatment of materials. For example, in metal heat treatment, the high energy generated by the laser is used to quickly heat the surface of the workpiece and quickly quench it. By precisely controlling the laser energy and action time, precise control of the heating area and temperature can be achieved.

808nm Infrared Laser Diode Module for Industrial Field

In various raw material cutting work, 808nm infrared laser diode module can make quick and accurate dot positioning for further cutting work, such as cutting metals, plastics, ceramics and other materials etc. It enables smooth cutting surfaces and ultra small heat-effected areas. In laser welding, infrared laser light source can achieves contactless and pollution free welding, which is especially suitable for welding precise parts, such as electronic components, aerospace parts, etc. It can improve welding strength and quality, and reduce welding detects.
When it gets quite high transmittance infrared laser light emission, available with low laser beam divergence angle, 808nm infrared laser diode module is used for punching materials with special need of high precision and small diameter holes, thus it makes good job for punching circuit board, films and other materials. Employed by a semiconductor laser diode and thermal emitting system inside a high duration metal housing tube, this infrared dot laser is not effect by any harsh working environments, and still maintaining ultra clear and stable infrared dot indication and measurement in various processing fields.
In industrial detection field, 808nm infrared laser diode module is used in laser weld tracking system, cooperates with industrial camera to detect the position and shape of welding in real time. After proper adjustment of welding path after following highly clear infrared laser dot indicating, engineer makes accurate laser welding work and welding quality. In machine vision detection, infrared dot laser is used an infrared laser light source to illuminate the object to be measured. Owing to good infrared lase light penetration at long extending distances, being used as a good IR laser light illumination source, it can help users make good detection of surface defects, size, shape of the object.
Featured by quite low laser beam divergence angle and TEM00 laser beam mode, 808nm infrared laser diode module is working well with ultra compact size and precise infrared reference dot projection in use. It can mark characters, patterns, QR codes and other information on the surface of products with high precision. Infrared laser marking work is clear, durable and wear-resistant, fulfilling the need of product traceability, anti-counterfeiting and identification, and is widely used in electronics, automobiles, medical devices and other industries.
In current manufacturing and design of industrial robots, 808nm infrared laser diode module provides accurate dot positioning benchmarks, guiding robot to complete grasping and assembling work precisely. In automated production lines, it is used for positioning and calibration of materials to ensure the accurate position of materials on the production line and smooth production processes. This long wavelength 808nm infrared dot laser can also be used for the installation and calibration of large equipment, such as in the fields of construction and shipbuilding, to assist in the installation of equipment and ensure the accuracy of equipment installation.

780nm Infrared Laser Diode Module Introduction

Usually a long wavelength 780nm infrared laser diode module is composed of a qualified semiconductor laser diode, qualified optic lens and cooling system inside a durable anodized aluminum alloy housing tube. It is equipped with constant electric power source supply. When it gets proper installation onto night version machine or device, after proper use of external electric power source and output power, it is able to work with ultra clear, precise and accurate infrared reference dot indication at long extending distances constantly.

Comparing with other visible laser devices, 780nm infrared laser diode module projects invisible infrared laser beam from its longer wavelength than visible optical spectrum, and only allows proper use as an accessory part. The wavelength is concentrated around 780nm and the spectral width is narrow, thus it is able to work with even pure and intense infrared laser beam emission with good monochromaticity. Owing to its good coherence, the phase relationship between light waves is stable, which can produce obvious interference phenomena, and is conducive to applications such as holographic imaging and coherent detection.
After advanced use of a qualified glass coated lens in front of laser beam aperture, featured by its small beam divergence angle of less than 1.5mard, 780nm infrared laser diode module always makes good directivity infrared laser beam emission at several miles far away, and realizes long distance infrared laser light transmission and ultra compact size infrared reference dot projection in continuous use. In addition, when it gets highly concentrated energy emission in a small area and narrow spectral range, this infrared dot gets high optical power efficiency, and produces high temperature or strong light effects on the target.
Performance advantages:
High stability. Cooperated with APC, ACC driving circuit board inside a durable anodized aluminum alloy housing tube, 780nm infrared laser keeps stable output power and electric current supply, and reduced possibility of tube burning out or damage. It gets up to less than < 0.5% power stability after constant infrared dot projection within 10 hours. Good Beam quality: 780nm infrared laser module enables high collimation IR laser light emission, a circular spot or a shaped spot, and the M² value is close to 1, which is conducive to focusing on a small size area to achieve high-precision processing or detection. Low noise: owing to low optical noise of less than 0.05% rms (20Hz-20MHz), it can improve measurement accuracy and signal quality, and has obvious advantages in applications such as weak signal detection. Applications: Biomedicine: 780nm infrared laser diode module is used for near-infrared imaging, which can penetrate deep into tissues and reduce damage to biological samples. It is also an ideal light source for optical coherence tomography (OCT), used in ophthalmic diagnosis and other medical imaging fields.
Scientific research: in spectral analysis, long wavelength of 780nm IR laser beam is used for Raman spectroscopy and absorption spectroscopy analysis to detect molecular vibrations, material composition and sample light absorption characteristics. It can also be used for laser cooling and capture technology to study the behavior of cold atoms.
Industrial field: it is suitable for micro-nano precision processing, such as high-precision cutting, drilling, etching and other processing of semiconductor materials, optical components, etc. in laser ranging, it uses its good directionality and high energy characteristics to achieve long-distance, high-precision distance measurement.
Security and monitoring: 780nm infrared laser diode module can be used as a fill light source for night vision devices, and cooperates with infrared cameras to achieve night monitoring; it can be used in infrared light curtains, beam detectors, etc. in security systems to achieve intrusion detection and alarm functions.

Special Use of 670nm Red Laser Diode Module

With the process of constant technical innovation of qualified semiconductor red laser diode tech, cooperating with a qualified optic lens, it is created into a quite practically used device of a 670nm red laser diode module. It is always required to make long time and long distance lasting red laser beam and red reference dot projection from beam aperture. This 670nm red dot laser gets basic use of thermal emitting and continuous electric power source supply, under operation with proper installation to desired machine or device, it just enables quite easy reaching, good directivity and ultra high brightness red dot positioning and measurement at various work distances constantly.
The major part of 670nm red laser diode has just assured ultra visible red laser light emission. When it is propagating in the air, human eyes are more sensitive to red laser light, and can be clearly see the red reference dot, thus it is bringing users great convenience for observation and positioning in various environments. Cooperating with a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, when red dot laser is used in multiple working environments, it is bearing wide range operating temperature, and making quite clear and stable red reference dot projection in long time use.
When dot measurement and positioning work is processing at different working environments, this 670nm red laser diode module applies a durable anodized aluminum alloy housing tube, which is bearing wide range operating temperature, and other harsh working environments as well. After integration with an ACC, APC driving circuit board inside the tube, within wide range output power of 5mW to 100mW, it still maintains constant red laser beam and red laser dot projection, reduced possibility of tube burning out or damage in continuous use, and long serving lifetime of more than 8,000 hours.
In practical precise dot positioning work, 670nm red laser diode module is not simply used for industrial, medical therapy, and scientific research fields, but also making good job for special working occasions as below:
Laser projection: 670nm red laser diode module is used as a red laser light source in projection device to project images or information onto a screen or other surface for teaching, conference presentations, home theaters and other scenes.
Laser ranging: Utilizing its low laser beam divergence angle and high directivity, the red laser beam is used to calculate the distance y measuring the time from emission to reception. This 670nm wavelength laser is used in architectural measurement, topographic mapping, robot navigation and other fields.
Stage lighting and entertainment: red laser light is used to create unique lighting effects and create atmosphere in entertainment venues such as stage performances, concerts, and bars.
Laser marking: in the fields of construction, decoration, etc., 660nm red laser diode module is used to provide horizontal, vertical or specific angle markings to help workers perform precise construction operations, such as wall laying and tiling.

General Use of 515nm Green Laser Diode Module

When dot measuring work is processing at different work distances, it is not relying on any manual dot projecting work at all. Being made with an import 515nm green laser diode as core component for generating laser, cooperating with a qualified optic lens and thermal emitting system inside a high duration housing tube, it is manufacturing into a quite practically used device of a 515nm green laser diode module. When it realized stimulated radiation through current injection and generates green laser with a wavelength of 515nm, it is also able to collimate the divergent green laser beam emission, thus convert into good directionality and high stability green reference dot projection for a lot of raw material processing works conveniently.

Supported by an AC/DC adapter, usually 515nm green laser diode module is able to work with continuous green laser beam emission. It provides stable electric current drive for the laser diode, controls the output power and working state of the laser, thus ensures the normal operation of the laser module within daily operating time of 8 to 10 hours per day. Cooperating with APC, ACC driving circuit board, it also enables long serving lifetime, and long lasting green dot projection for various application fields. When green dot laser gets ultra compact structure design and durable anodized aluminum alloy housing tube, it is playing an important role in protecting internal components and usually getting good heat dissipation performance, thus it is preventing itself from overheating during operation and effecting performance or life.
Among all visible optical spectrum, 515nm wavelength is in the green area of visible light. Owing to its highly sensitive color laser light emission of this wavelength, thus green laser light source emitting from a 515nm green laser diode module can be clearly seen in various environments. When it gets quite low laser divergence fan angle, it is forming into a ultra compact size and bright green reference dot projection at different work distances. After high energy concentration from beam aperture, cooperating with adjustable focus optic lens design, this 515nm green dot laser makes sure of highly efficient conversion of increasing accuracy and brightness green dot alignment at long extending distance effectively.
Within wide range operating temperature of -10℃～50℃, 515nm green laser diode module gets wide temperature adaptability. Being made with advanced manufacturing technology and high quality optical components, it enables stable output power and green dot quality during long term operation. It keeps work with high photoelectric conversion efficiency, within the lowest energy consumption, this 515nm green dot laser is able to make ultra clear and precise green dot indication at long extending distance of more than 25 meters. On the basis of correct selection of output power and operating voltage electric power source, not relying or limited by manual labor force input, it can be used for clear dot positioning work in industrial processing, indication in medical equipment, marking in scientific research experiment, and effect display in stage lighting etc.

High Density Beam Emission of 445nm Blue Laser Diode Module

When advanced semiconductor laser diode is applied for those of industrial and high tech fields, not simply made into a simple laser pointer, laser tech engineer has been developed into a quite practically used device of a 445nm blue laser diode module. Based on Based on technologies such as gallium nitride (GaN), it can provide higher brightness and high photoelectric conversion efficiency, thus obtain stronger laser output with less energy input. Whenever 445nm blue dot laser gets highly concentrated blue laser light source emission at several miles far away, it also makes sure of highly efficient conversion of ultra clear and bright blue dot projection at long extending distance effectively.
Usually 445nm blue laser diode module gets quite small size blue reference dot from beam aperture. When it is used for those of high precision machinery processing work fields, such as fine processing and precision measurement, it generally reaches the millimeter or even micron level. Even though it is pointing at long extending distance of 25 meters and other high lighting occasions etc, this 445nm blue dot laser still makes quite satisfied blue dot generation for various raw material processing works conveniently.
When 445nm blue laser diode module is used for high precision raw material processing works, its highly bright blue laser beam can be easily absorbed by metal, such as cooper, gold, and aluminum etc. Comparing with those of longer wavelength infrared lasers, it can effectively improve processing efficiency when processing those of highly reflective metals in continuous use. Owing to its low laser beam divergence angle, either it is pointing at close or long distance, only after its correct use of output power, this 445nm blue dot laser is working well with good straight line propagation, thus achieving high pointing accuracy and stability, and maintaining good laser dot quality during long distance transmission.
What is the application of 445nm blue laser diode module?
Industrial manufacturing. When it is used for cutting, engraving, welding and other process of metal materials, especially for high reflectivity metals, such as cooper and aluminum, it is working well with good laser marking results as expected, and helping a lot for clear and fine marking works for pattern, text and logos on the surfaces of various materials.
Biomedicine: in the fields of fluorescence microscopy and fluorescence spectroscopy, 445nm blue laser light source is used as an excitation light source to excite fluorescent substances to emit fluorescence, which is used for observation and analysis of cells and tissues. It is also used for some medical applications such as dermatology.
Optical communications. Being used as a blue laser light source for optical fiber communication system, 445nm blue laser can achieve high speed and large capacity data transmission.
Scientific research: 445nm blue laser module is used for researches on the interaction between light and matter in a lot of research fields of photochemistry, photobiology, and optoelectronics.
Laser display and projection: as one of the three primary colors, blue laser light is used in laser display technology and laser projection equipment so as to achieve high color gamut and high resolution image display etc.
Security and detection: this accessory part of blue laser light source is used in laser biological evidence detection instrument so as to conduct on-site trace investigation of biological evidence such as dandruff, urine, semen stains, and blood.

What is The Special Use of 405nm blue violet dot laser alignment

Unlike the use of the use of any other visible laser devices, the operation of a 405nm blue violet dot laser alignment just gets much shorter wavelength than other laser among all optical spectrum. However, it still gets even higher thermal energy in practical use. It adopts a high quality semiconductor laser diode with wavelength of 405nm and basic use of thermal emitting system inside its durable metal housing tube, which enables high density violet laser beam emission and long distance extending violet laser dot projection in continuous use. When violet laser module is mounting properly onto industrial device, it makes sure of quite easy reaching, good direction and long lasting dot indication for all application fields effectively.
In practical precise dot measuring works, this 405nm blue violet dot laser alignment gets featured advantages of high monochromaticity and directionality, can achieve micron-level or even nanometer-level processing accuracy and high brightness. It gets different output power range of 50mW to 100mW. Cooperating with basic part of a metal heat sink cooling system inside its durable anodized aluminum alloy housing tube, this 405nm violet laser diode module also gets different dimension tube design of 16mm and 26mm. When it is pointing for long time lasting dot measuring works, it gets superior nice thermal emitting and maintains ultra stable and reliable violet laser dot projection within long lasting work time of 10 hours per day.
In multiple ambient temperatures, this 405nm blue violet dot laser alignment bears wide range operating temperature of -10 to 45 degree Celsius. In addition, it still gets no effect by harsh working environments. It can adapt to high temperature environments through good heat dissipation design or cooling system. It also gets no strict requirement of high humidity, and can operate stably in normal humidity environments. Cooperating with cooling system, the usual use of a 405nm violet laser diode module just enables good thermal emitting, and long time lasting violet laser dot projection within constant work time of more than 10 hours per day.
In those of industrial and high tech precise dot measuring work fields, 405nm blue violet dot laser alignment should only be selected with correct output power and operating voltage DC power supply. It enables long time lasting and long distanced pointed dot projection for multiple raw material processing works. For the most important of all, when it generates high density violet laser light source and thermal energy hurt to eyes, it is a major part to wear laser safety goggles and avoid eye exposure to beam aperture, thus violet alignment laser brings users easy, secured and no thermal hurt to skins and eyes effectively.