Rechargeable Amber Book Light, Blue Light Blocking Reading Light, Clip on Book Lamp for Reading in Bed at Night, LightweightGreat Birthday Gift for Children, Bookworms, Kindle, Ebook Readers Studies has shown that exposure to Blue Light surpresses the release of sleep hormone melatonin, and is harmful for your eyes and sleep patterns. Wanna enjoy reading in bed at night? Want healthy eyes & good sleep?Want Christmas Gift for your kids?Just try iGoober Amber Book Light! Feature: Blue Light Blocking: 99.95% blue light blocked. Warm Amber Glow is Easy on the Eyes and Sleep Friendly. Upgraded Flushed Mounted On/Off Switch: Unlike other?s Convex Switch accidentally keeps turning on light during trip and drain battery, this won?t turn on light unless you push the switch. 3 Brightness Levels : Easy to use, one key to turn on / off the lamp and choose different brightness level to satisfy your needs. Four Power Modes: USB port, Power bank, Car Charger and 5V phone charger (NOT included). Lightweight: Compact, portable and Ideal for Travel. Take it on holidays, Camping etc. Creative Patent Design: The light head is like peanuts, clip like peanut shell. *Attention: If the book lamp received cannot light on, it possibly because battery power running out. You can charge the battery, then it can light on. Please charge the lamp before initial use. It takes about 3 hours to reach a full charge. While charging, the indicator is red, when fully charged, indicator will be green. Packing List: 1x LED Book Reading Light 1x Micro USB Charging Cord 1x User Manual Specification: Material: Metal+ABS CCT: 1600K LED quantity: 5Power: 1W Battery capacity: 1200mAhInput voltage: DC 5V Charging time: about 3 hours