Usage Tips:Model Number : Mini Clip Lamp Switch Type : Touch On/Off Switch Shade Type : Shadeless Material: ABS,PC Size: 30*4.3*2.8cm Color: black,white Plug Type: EU plug, US plug Voltage: 5V Ower supply: USB Power: 5W Features : Support stand and clip modes Style : Modern Light Source : LED Bulbs Item Type : Desk Lamps Is Smart Device : NO Product battery: polymer 600 mAh battery Is Dimmable : Yes Operating temperature : -10°C~+40°C Color temperature : 5500-6000k Charging time : 2 hours Easy to Charge,Built in rechargeable lithium battery and micro USB port. Enjoy your wireless 30 HOURS reading without charging at brightness setting (Warm, Low). Standard Android micro-USB cable included. Allowing you to recharge your book light via laptop, power banks, 5V phone charger (not included). Eye-Protection & No Flicker,There are 3 Levels, Stable and the perfect brightness that keeps your eyes comfortable and protect your eyes from shining hurt and radiation. Lightweight & Portable Design,Perfect as book lights, bedside lamps, music stand light, computer light, desk light or for headboard reading, camping, kid's night reading, study, keyboard, kindle, makeup, sewing, painting, tailoring, DIY tasks and hobbies. Flexible Neck&Sturdy Clip,This clip light is flexible and provide 360 degrees functionality. Double rubber pad on the clip protects pages from being damaged. Packing list: 1 Pcs reading lamp(600mAh) 1 Pcs USB data cable