1. Material: ABS+PC+Metal 2. Beads: Ceramic COB (3PC) / White LED (9PC) 3. Color temperature: ceramic COB 2700-3000K/white LED 6000-7000K 4. Lumen: 20-260LM 5. Charging voltage: 5V/Charging current: 1A/Power: 3W 6. Charging time: about 4 hours/usage time: about 5h-120h 7. Function Level 3: Warm Light - White Light - Warm White Full Light (strong and weak light is infinitely dimmable) 8. Battery: 2 * 1860 (3000 mA) 9. Product size: 108 * 180 * 228mm/weight: 445g