It supports 360-degree arbitrary adjustment, and can evenly the book when reading. Great way to your eyes when reading in bed or in the dark 7 LED book reading lights have 3 color modes to meet the reading needs of most . 3000K warm color contains 3 , 6000K white contains 4 , 3000K+6000K combination color contains 7 . Rechargeable book light with rechargeable batteries. Battery capacity: 600mAh. After fully , you can enjoy about 10 hours of wireless reading. For reading, embroidery, drawing and more. color:White Material:plastic Package Contents: 2 x Book Light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.