plug type Electric Cable Light source type LED Material ABS Product dimensions 65D x 40W x 45H millimeters Battery composition Lithium-polymer Weight 70 Grams Number of batteries 1 Lithium-polymer - included Level of resistance to Waterproof See less About this item The headlamp is built in a 1200mAh rechargeable battery. A full battery charge (4 hours) provides up to 30 hours of constant light use. USB cable is included in the package. White Light provides high (800lm), medium (400lm), low (150lm) and SOS strobe lights; Red light provides stay on and flash modes. The rechargeable headlamp can be turned on/off by waving your hand in motion sensor mode. Weight less than 2, 5 oz, an adjustable ergonomic elastic headband and a 45 degree visibility angle that make the headlamp ideal for running, camping and hiking.