Diode LED IR 940nm 850 nm 1.5v 3mm / 5mm Infrared Emitting Round Tube Bulb Light, 3mm/ 5mm IR diode led Features, Lightweight and thin, Resistance to mechanical vibration, High-reliability and long life-span, Low power consumption, Low heat producing, Pb free, radiationless, Energy conservation, Environmental protection, PRODUCT APPLICATION, CCTV cameras , Surveillance systems ,  Infrared illumination for cameras, Machine vision systems, © Night vision system,  Intruder Alarm.