Diweit Led Desk Lamp,sturdy Gooseneck,2 Brightness Level,5w,perfect LED Desk Lamp for Reading,could Be Powered By USB or Power Bank(clip Light,clamp Lamp) 5W,this lamp with 2 grade brightness level,if you don't want to disturb others you could switch to the lower brightness Comfortable, flicker-free and ghost-free lighting for reading/work/study; pleasant on the eyes, causes less fatigue Sturdy clamp allows great versatility; mount to bedframe, headboard, home office tables, computer desk Energy efficient, cost 75% less energy than incandescent lighting for the same level of brightness. Package: including 1x lamp