Color: black, white Size: 30*4.3*2.8cm Material: ABS Weight: 100g Power source: rechargeable battery Light source: LED bulb Power: 5w describe: Upgrade 3 brightness to choose fromA total of 7 LEDs and 3 brightness modes with 3 color temperatures (5000K to 6000K), press and hold the switch for 3 seconds to change the light color. Meet different light needs in daily life, such as reading, work, study, sewing. Easy to ChargeBuilt-in rechargeable lithium battery and micro USB port. Enjoy 30 hours of wireless reading on brightness settings (warm, low) without charging. Includes standard Android micro USB cable. Allows you to charge your book light via laptop, power bank, 5V phone charger (not included). Eye Protection No FlickerWith 3 color levels, stable and perfect brightness, keep your eyes comfortable and protect your eyes from glitter damage and radiation. Lightweight and Portable DesignSmall size, ideal as a book lamp, bedside lamp, music stand lamp, computer lamp, desk lamp or headboard reading, camping, children's night reading, learning, keyboard, lighting, makeup, sewing, painting , tailoring, DIY tasks and hobbies. Flexible Neck & Sturdy ClipThis clip light is flexible and provides 360 degrees of functionality. Double rubber pads on the clip protect pages from damage.