The Simson USB LED Light "eyes" red is a compact red LED lamp. The Universal rubber mounting strap can be mounted horizontally or vertically. The light has a maximum burning time of 7.5 hours and also haves a battery indicator so the battery can be recharged at an early stage within 2.5 hours with the USB port of a computer. The LED has an output of 3 LUX and easily operable button for on, off and blink function. Includes USB 2.0 charging cable.