... LightMade of T6 LED, ultra brightOutput bright comes to max 1200 lumens4 switch modes: Strong Brightness, Normal Brightness, Weak Brightness ... 8.4 V maxMode Arrangement: High > Mid > Weak > Fast StrobeBrightness: 1200 lumens maximum brightness (manufacturer rated)Runtime: Up to 3~4 ... 4v 4400mAh Battery Pack.1 x Power Adapter (100v ~ 240v). 1200 Lumen 4 Modes Waterproof SSC T6 Bulb LED Outdoor Bicycle ...