Control Installation Method: Clip package includes 1 x reading light,1 x USB charging cable,LED with eye protection Light source bed clip lamp bed white power cord with LED light,LED clip-on desk lamp can emit natural and non-flickering light,no eye damage,no fatigue. Perfect for reading,studying,working,painting,sleeping and more. Reduce eye strain and protect your eyes 3 brightness adjustable to best suit your needs. The freely rotating tube can be rotated 360 to give you the best viewing angle. There are non-slip silicone pads on the base,and the clip design can also be placed smoothly. The maximum width of the base or bracket clip with anti-slip clips is 6 cm. You can install this reading lamp in many places such as books,desks,bedside tables,bookshelves,bookshelves,wardrobes,music stands,pianos and computers. You can also put it on the table and use it as a regular desk lamp. Compared with other LED book lights,the LED clip-on USB reading light provides a uniform,wider,evenly distributed light surface,which is perfect for student dormitories,offices,bedrooms,children's rooms,reading,studying at night.Method: Touchpecification Color: White .Size: 420120mm .Voltage: 36V.Light Color: White Light .Type: Clip-on. 20 LED Lamp Beads Control.