Very Highly efficient GaAs Infrared Emitter Diode 940nm - 950nm 25° 5V 130mA 220mW, IR remote control of HI-FI and TV-sets, video tape recorders, dimmers, ∅ 5mm SFH300 case, equivalent: GL538K KEL5002A LD271D TSAL5100 TSAL6200 TSAL7200.