Eye Care - Reading Lamp with Book Holder. Color: White - Dimensions: 12.5 X 7 X 21.2 cm. Eye Care - 20 clip-on LED lights provide pleasant, flicker-free light. 3 colors of light: cold light, warm light and natural light to meet our different needs. 3 Adjustable Brightness Levels - Each light color has 3 adjustable brightness levels (30%, 60%,). Built-in 2800Mah lithium battery - USB rechargeable, longer battery life. (USB cable is approximately 80 cm long). Clamp lamp - exquisite and beautiful appearance. The rechargeable yellow reading light effectively blocks blue light, allowing you to read, work and enjoy the night. Warm, healthy light makes reading and sleeping easier. Most reading lamps use white light. Blue and white light can cause eye strain and migraines, keep you awake at night, and interfere with the production of melatonin in the body, which can negatively impact our health and sleep patterns. Perfect as bed clip, partition table, office desk, computer table, shelf, headboard, drawing board and more. Great for kids, night reading, DIY, painting, keyboard lighting... Contents: 1 reading light. 1 2800mAh battery. 1 cable. 1 user manual (English not guaranteed). "