Usage Tips:Clip-on Reading Light For Bed Headboard:rechargeable And DimmablespecificationsColor: whiteSize: 420x120mmVoltage: 36VLight color: white lightLight source type: 16 LED lamp beadsControl method: touch controlFastening method: clippackage includes1 x reading lamp1 x USB charging cableEye-care LEDs Light sourceBed clamp lamp bed white power cable with LED lamps, LED clamp desk lamp can emit natural and non-flickering light that will not hurt or strain your eyes. Perfect for reading, studying, working, drawing, sleeping and so on. Reduce eye fatigue and protect eyes3 brightness adjustable to best suit your needs. Single press to select color temperature and long press to adjust brightness.The freely twisted tube can be rotated 360, offering you the best viewing angle. With the non-slip silicone pad on the base, it can also be placed smoothlyClip-on design with anti-slip clamp base or bracketThe maximum width the clip can open is 6cm. You can mount this reading lamp on many positions such as book, desk, headboard, shelf, bookshelf, wardrobe, music stand, piano and computer. You can also put it on a table as a regular table lampWidely Used: LED clip on reading light USB provides even and wider evenly diffused lighting area than other led book light, perfect for college dorm, office, bedroom, kid39;s room, kindle for reading, study, etc