This adjustable 90 degree lamp head provides 24 bright LED lights with 3 different brightness levels. The lamp head tilts and swivels putting the right level of light exactly where you need it most. Battery-powered so you can take it with you, it can also be powered by the USB cord included. Req. 3 "AA" batteries (sold separately). Plastic and aluminum. Head length is 10". Base is 5"W x 13"H, when fully extended: 23 1/2"H with base.