USB 250 lm COB LED rechargeable headlamp + motion sensor 99-073 NEO is a durable and functional device with practically adjustable light power up to 250 lm. Equipped with two COB LEDs (providing diffused light) and XPE (adjustable light beam through a moving head). The lamp is powered by a 3.7 V 1200 mAh lithium-ion battery.