Waterproof 4000lm CREE XM-L T6 LED 4-Mode Headlamp Headlight Head torch Light Lamp+4 Batteries+ Charger type: Outdoor Color: White switch type: 4 switch Mode: high/middle/low/strobe features: Mode Arrangement: Single T6 LED > 2x T6 LEDS > 3x T6 LEDS > Strobe.Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent.