... . 2. Explosion-proof, water-proof, corrusion-proof. Especially, 1. Magnetic botton can stay on steel metal surface. 2. Fixing Base ... , Battery capacity: 4400mAh rechargeable li-ion battery, Battery Voltage: 3.7V Battery lifetime: 1000 cycles Light duration: more than 6 ... 217.3*103.8*87mm. Unit weight: 360g, (battery included) Ex mark: Exib II CT4 IP classification: IP66 Magnetic LED flashlight 3 watt ...