The OttLite Perform LED Clamp Lamp has a 19.5" wide shade, three color temperature modes and five brightness levels so you get super bright daylight LED illumination exactly where you need it. Exclusive ClearSun LED technology optimizes illumination while helping reduce eyestrain by 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.