940nm infrared LEDs are virtually invisible to the naked eye. These LEDs produce no light that the naked human eye can see. An 850nm LED produces a visible red glow but will illuminate stronger than a 940nm LED of equal power.
eBay
Emitted Co lor:Infrared IR. High power IR Bright LED. driver and heatsink to make it work. 970-980 nm:19-21V. 930-940 nm:13-15V. 840-850 nm:15-18V. 800-810 nm:19-21V. 760-770 nm:19-21V.
eBay
Choose stealth (940nm 980nm) or extra brightness (850nm). What’s the difference between 850nm and 940nm infrared LEDs?. Choose 850nm for power, 940nm for stealth. Powerful & Discreet: 27W output covers a full room when bounced off light-colored ceilings (reduces shadows).
eBay
LED wavelength: 850nm 940nm 980nm (Other IR wavelengths can be customized). Wavelength 980nm (no glow, invisible to human eye), Wavelength 940nm (almost no glow), Wavelength 850nm (visible red glow).
eBay
eBay
Infrared emitting for miniature light barrier. Infrared LED Peak wavelength 940-945NM Applications PCB mounted infrared sensor. Infrared LED Peak wavelength 845-855NM Applications Infrared applied system.
eBay
They are infrared lights. First, they show different wavelengths. 740nm can be used for infrared, can also be used for plant growth lights. The higher the radiation intensity, the higher the brightness.
eBay
POTENZA TOTALE 72W. IN VENDITA UNA BOBINA DA 5M DI STRIP A LED INFRAROSSI smd5050. Quantità led: 60x smd5050 triplochip.
eBay