Description:Size: 5mmLength: 37mmEmitted colour: InfraredLens color: Black/Clearwavelength: 940nmForward voltage (V): 1.2-1.4VForward current (mA): 100mATransmitting and receiving distance: about 7-8 MetersPackage included:25 x Emitter IR infrared diode25 x Receiver IR infrared diode