The heavy duty Un series strip light from Lithonia Lighting is ideal where high brightness and good illumination levels are required, such as retail, light industrial or warehouse spaces. This strip light has a durable channel made of 20 gauge steel with a high gloss White finish. Fixture requires no tools for assemblage, and installation options include unit or row installation and surface or suspended mounting. For use with two 59 watt T8 high output fluorescent bulbs not included .