Laser pointers with 405 nanometers wavelength of light are also called blue violet laser pointers. Although it is rarely prefered to the green and red ones, it could be used for what others do, which also reflects the individual unique aesthetic taste. It is probably not as much preferred lasers as an astronomy laser pointer, because brighter colors would make an object more visible in the sky. However it comes down to all other uses such as pinpointing something on the large screen or on the blackboard.
Green laser pointers is now the world's most popular laser pointers, because the green light than red light 6 times more than red light beam significantly, while the price is much cheaper than the blue and yellow. Green pen is the wavelength of light emitted 500-550nm, the wavelength sensitivity of the coefficient table, as is the closest one wavelength. Green is undoubtedly efficient light source, the eye more easily identified. The green light sensitivity of the human eye is higher than a lot of red; the other is green light scattering in the atmosphere more than red light.
Red laser pointers, wavelength 630-670nm green laser pointer is more for longer. The first red pointer was released in the early 1980s. Nowadays, the red laser diode technology has been very mature. More durable, the price is much more cheaper than ever. More easily transmitted red light air, dust, water vapor, so the light path can be seen to need more power. 100 mW red laser pointers probably only about 20 milliwatts, and green. Do remember that red laser pointers are powerful since the light they emit is powerful when it hits a certain object and converges into a point.
Place to note
Now, more and more laser pointers and flashlights sold in the market are class IIIB with a power over 5mW. But when the laser directly penetrates into the eyes, there may be some damage. Especially to some high power laser pointers, diffuse light probably damage the eyes, the focus are more likely to ignite flammable materials. Therefore laser pointers are not a toy, not suitable for children. When operating high-power laser, wear special secure glasses would be safe, especially for the invisible laser. In a word, no matter how much power the laser power is, you need to avoid hitting into your eyes.
Introductions: Equipped with CREE XM-L T6 emitter, this LT-118 CREE T6 3LED 4000 Lumens Flashlight Black gives out bright beam of light in the dark, which can lighten the way you walk. Powered by high-capacity batteries, this flashlight is low power consumption and power saving. There are two kinds of switch types, button and tail-cap, so you can choose the one you like. With aluminum smooth and SMO reflector, this flashlight can always give you high-efficacy light effect. Its runtime is up to 3 hours, which is suitable for long-distance travelling perfectly. In addition, the 300m lighting distance will meet your requirement. So what are you waiting for?
Features: 1.This torch uses of high-quality LEDs, producing very bright beam of light (4000 lumens) 2.This flashlight uses a smooth reflector. The smooth reflector provides a more concentrated beam, and therefore a better throw range 3.The body of this flashlight is built of high quality aluminum alloy, and it has a very solid construction 4.Internal wiring applies the high efficient booster circuit, and can utilize the batteries in the largest extent 5.It is suitable for home use and daily use
Specifications: 1. Lighting Distance: 300m 2. Model:LT-118 3. Emitter Type: CREE XM-LT6 4. Lumens:4000 Lumens 5. Bulb Quantity:3 6. Light Color:White 7. Lightbulb Lifespan:100000 hours 8. Battery Configuration:2 x 18650Batteries (not included) 9. Input Voltage: 7.4V-8.4V 10. Runtime:2-3 hours 11. Switch Type: Button, Tail-cap 12. Reflector:Aluminum Smooth/SMO Reflector 13. Material:Aerospace Aluminum Alloy 14. Color:Black 15. Dimensions: (8.86 x2.2x1.18 )" / (22.5 x5.6x3 )cm / (L x Head Dia. x Body Dia.) 16. Weight:351 g /12.38 oz Package Includes: 1 x LT-118 3LED Flashlight
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CREE T6 3LED 4000 Lumens Flashlight Black
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