Detailed Product Description LED reading lamp Size: Dia30, tube length: 250mmPower: 1*1W/1*3WBeam angle: 8,15,30,45,60 degreeLED color: R/G/B/Y/WW/NW/CWKey features: portable reading lamp with clamp silver finish gooseneck tube power supply with switch on/off best suited for reading light placed at the end of bed