Full Description--Material: High Quanlity ABS--LED source: 22 pcs--Size:11.5cmx8.5cm--Battery Volume: 800mAh--Charge time: 12 hour--Working Time: 8 leds woking for 10 hour and 22 leds working for 4.5 hour--Input Voltage: 90V ~240V AC 50~60Hz--Working mode: 2 modes (8 Leds working/22 Leds working)Kindly reminder:1. Reading lamp need to often use. Please charge 1 times in 2 months and charge time is more than 8 hour if you don't often used. 2. Charging time is not more than 24 hour. Normal， charging time is approx 12 hour3. Don't use reading lamp when chargingPlease be noted: The power plug is in US standard. Please be remark according your localtion related standard when ordering.