James capabilities include the production and supply of LEDs ranging in frequency from Ultraviolet 254 nm 255 nm 365nm to 380nm, through to Infrared 720nm to 940nm and many frequencies in between such as 400nm to 410nm and 410nm to 415nm 415 nm Violet. 455nm through 480nm Blue, 495nm through 510nm Cyan , Green 515nm through 535nm, Yellow 585 and 565nm through 596nm, Orange 600nm through 615nm, Red 615nm, 630nm and 633nm, 633 nm through 645nm and 660nm 660 nm in Round and Oval, Superflux, High Power, SMD and COB (Chip On board) packages. Utilising single and multi chip capabilities and the ability to combine with varying lens types and angles as well as frames and mounting options.
Most regular safety glasses block UV. I use a pair I bought at home depot that are shaded for the brighter LED systems I work with.
Even the Nichia 365nm LED’s that I work with at times emit some visible light, their peak is at 365nM and the light emitted above 400nM is weak but visible. There may be some materials in the LED’s that absorb UV and re-emit visible as well.
I’ve been working with UV LED equipment for several years and have never gone home with a tan. I’m not exposing myself to it for hours at a time either. For times where I have to work with it for extended times I have welding gloves, sunblock, and a good pair of safety glasses.The lights I work with emit up to 15W/cm2 at 390nM so I’m more likely to burn myself then get a tan. Still I try to limit exposure time. The LED’s listed here are very low power, but a long exposure time at low power can equal a short time at high power. Less time is best either way.
These LED’s are good to 20mA, I have tried to push the current higher with similar LED’s and they don’t last to long.
At 395-400nM security features will show up but they are more pronounced at shorter wavelengths. This is probably what is used for those little flashlights they use to check your drivers license, and money. Low power and long wavelength for safety
Detailed Product Description
1) 280nm led uv lamp
2) Power: 1-3mW
4) Life span: 50,000h+