Infrared LED is a most powerful solid-state lighting device spectrally matched with silicon photodiode and phototransistor. Its competitive benefits can be summarized as follows: (1)environmental protection; (2)high radiometric power, excellent thermal management and high energy efficiency for infrared applications; (3)low thermal resistance; (4)fully dimmable; (5)high speed response; (6)high-reliability and long life; (7)high-output power, low power consumption; (8)wide viewing angle. Infrared LED is available with different color, intensities, epoxy colors, etc. Its peak wavelengths include 940nm, 880nm, 850nm and so on. This LED can be used in floppy disk drive, infrared sensor, infrared monitor, free air transmission, infrared detector, infrared light, automatic control system, infrared emitters of remote control for tvs, audios, dvr, pvr, video recorder, satellite receiver, air-conditioners, car electronics, optoelectronic switches, and other infrared system.