The OttLite Extra Wide Area LED Clamp Lamp has a 19.5" wide shade, three color temperature modes and five brightness levels, providing super bright illumination where you need it most. Exclusive natural daylight ClearSun® LED technology helps reduce eyestrain by up to 51%. With a sturdy clamp and touch sensitive controls for on/off, brightness settings and three color temperature modes, this lamp works great on any office desk, work bench, crafting table or anywhere you need extra light to get the job done. With OttLite you'll see every color accurately and detail clearly with reduced glare and eyestrain so you can do what you love, longer.Details:White lamp19.5" (49.5 cm) rectangular shade widthHeight adjusts from 16" to 24.75" (40.6 cm to 62.9 cm)3 color temperature modes5 brightness levelsClearSun LED technology reduces eyestrain up to 51%Touch sensitive on/off, brightness and color temperature controlsSturdy clampA/C adaptor included