Specifications: Function: WindFire Zoomable CREE XM-L T6 U2 LED 1800 lumens Rechargeable LED Headlight. Model of LED: CREE XM-L T6 U2. - Output bright can come to max 1800 lumens. - Internal wiring applies the high efficient booster circuit can utilize the batteries in the largest extent. 3 modes brightness: high, low and strobe. Waterproof design for little water drops, please do not use it in heavy rain and put it into water directly. One button switch: On, Off, High, Medium, Flashing. Charging: - 100v - 240v Battery Charger. - Model of Battery required: 1 or 2 x 18650 Rechargeable Battery. WindFire 18650 Battery: - Suitable for Flashlight Torch / Headlamp. - Capacity: 4000mAh. - Voltage: 3.7V. AC adapter: - LED indication for Power On / Charging / Full charge. - Input: AC100 - 240v (World voltage). Car Charger Features: - LED indication for Power On / Charging / Full charge. - Input: DC 12V. USB cable Charger: - Special designed USB cable for the LED lamp light. - Ouput: DC 3.7- 4.2V. - Input: AC100 ~ 240v (World voltage). - The USB cable can directly Power the LED headlamp with mobile Power bank, Computer and Any Other Digital Device with USB Port . - The USB cable can directly Charge the 18650 batteries for the led headlamp with Power bank, Computer and Any Other Digital Device with USB Port . What's In The Box: 1 x WindFire 1800 Lumens Rechargeable CREE XM-L T6 U2 LED Zoomable 3 Modes Design Headlamp. 2 x WindFire 18650 Rechargeable Battery. 1 x AC Charger . 1 x Car Charger. 1 X USB Cable Charger. WindFire After Service: 30 Days Money Back Guarantee, 12 Months Warranty!