Compact design. Replace on-the-fly cartridge battery. Handlebar or helmet mount. Optional fast-charging cradle. We kept everything you love about our game-changing Volt300, and made it brighter. With 400 lumens and 5 modes, the Volt400 lets you see and be seen during your dawn and dusk commutes, and makes training after hours an option again.
Li-ion rechargeable battery (3.6V-2200mAh)
Recharge time： approx 3-6hrs (USB2.0 recharge), 3hrs via optional fast-charging cradle
Recharge/discharge number of times： about 300 times（until the rated capacity drops to 70%）
Other: Low battery indicator, lighting mode memory function. Helmet mount included (USA only), Center fork bracket (optional)