This practical reading lamp is manufactured with stable materials, safe, durable, not easy to damage or break for long time using. Flexible design, the book light can be adjusted to the angle you need. Can be applied for reading and writing , in the bedroom, study, hotel and so on. Features - Color: Black -Material:Plastic - Size: 24.00X3.70X2.30cm/9.43X1.45X0.90in Average service life:5000h (h) Light source power:0.5W (W) Voltage:<=36V (V) Working time: 3-15h - The light can be switched to three gears of color temperature, and the brightness can be adjusted easily. - Small in size, light in weight, easy to carry around. You can also send it to your friends and families. - Rigorous process, selected good material manufacturing, seemingly simple, but everywhere is delicate. - The sturdy clip can be clipped on paper books for lighting. Ultra-light weight and mini size it easy to carry anytime and anywhere. - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 1 x book light