Portable Rechargeable Folding 31 LED Reading Light Table Book Lamp 110v-220v Blue Built-in high capacity 1300mAH lead-acid battery which can be recycled more than 500 times 31 LED give bright and soft light without flash, good to protect your eyes Two levels of the lamp: weak light and strong light, choose one mode as you need Rated voltage:AC90-240V 50Hz, Light power:3.1 W Charging Cable Length: 63cm; Neck length:25cm