... alloy, hard oxidation treatment. 2. Voltage : 5.0-12.6V (in this voltage range, use other voltage battery damage the flashlight, the factory is ... : 120-900 lumens. 4. Lamp life : ≥ 100,000 h5. Battery : 2-3 pcs 18650 Li-ion, 3.7v&3000mAh per ... charger adopts chip controlled charging with a constant current, constant voltage charging, overcharge protection, short circuit protection, turn lights and ...