CREE XM-L T6 LED Super Bright 3800Lm LED Headlight Headlamp and Bicycle Light Intelligent circuit control 4 switch modes: High / Normal / Low / Strobe Powerful Rechargeable 6400mAh battery pack makes it work for a long time Perfect Choice for outdoor activities like cycling camping traveling hiking etc. The lamp support fixing on the bicycle with the rubber ring working as a bicycle lamp. Description: Function: 3X CREE XM-L T6 3800Lm LED Bicycle Light and Headlamp. 2 in 1 functions: It can be used both as a Bicycle light and Head Light Brand: WIndFire Type of LED: 3X CREE XM-L T6 LED. Material: - Aluminum alloy casing avoid high temperature anti fall-off. - Aluminum alloy reflector. - Coated Glass Lens. Switch Modes: Normal / High / Low / Strobe. Brightness: Output brightness can come to 3800 lumens (Maximum). Runtime: Up to 2 hours run-time at 100% brightness (manufacturer rated). Power Source: 1 x 8.4v 6400mAh rechargeable Battery Pack. Input: 100V-240V 50/60Hz. Output: - Voltage: DC 8.4V. - Current: 1A. Package include: 1 x WindFire 3X CREE XM-L T6 3800Lm LED Bicycle Lamp Headlightt. 1 x Adjustable headband. 2 x Rubber ring for installation. 1 x 6400mAh Battery Pack. 1 x AC charger (100-240V). 1 x Plug Adaptor (if need). WindFire After Sale Service: 30 days money back one year warranty.