1. Material: ABS 2. Light source: 3 * P35 3. Voltage: 3.7V-4.2V, power: 5W 4 Range: 200-500M 5 Battery life: about 2-12 hours 6. Luminous flux: 260 lumens 7. Light mode: Strong light - Medium light - Weak light - Burst flash - SOS 8. Battery: 14500 (400mAh) 9. Product size: 82 * 30mm/Weight: 41g