An all terrain vehicle, is designed to handle a wider variety of terrain than most other vehicles, Acebeam follow this idea and present the new all brightness headlamp H15 to meet multiple outputs from 10lm to 2500lm,and special modes. Acebeam H15 coupled with an CREE XHP70.2 LED,orange peel reflector,including Acebeam 3100mAh 20A protected 18650 battery,IPX6 sealing and aerospace-grade 6063 aluminium alloy body with Premium type III hard anodized anti-abrasive finish. There is magnetic ring and switch on the head, rotating the ring have 4 different positions,we call them: Eco mode(10-20-35-50lm) apply to night reading; Low mode(50-90-150-250lm) apply to night running; Med mode(250-320-500-700lm) apply to daily use; High mode(700-1000-1500-2000lm) apply to searching; Click the switch for different outputs' circulation. In emergency situations if you need vast brightness, Double click the switch activates 2500lm and Triple click activates Strobe; There is SOS mode we designed and hope you never using, keep press and hold the switch for 1s when the light is off. What will do to these multiple lumens from Acebeam H15? Let's go and start having fun.