Maxim Lighting's slim 2.5 profile Energy Star Certified Low Profile EE Collection uses energy saving T9 Circline bulbs, mountable on the ceiling or wall, with features including electronic no flicker ballasts, 3100 K color temperature, rated life of 10,000 hours, and UV rated acrylic. White Finish Made of Steel Shade made of Acrylic White Glass Shade 1 1 32 40W 4-Pin T9 Circline Fluorescent Bulb s Bulb s Included Color Temp 3100 Rated Life 15000 18000 Meets California Title 24 Requirements Lumens 4750 Ballast Part of the Low Profile EE Collection Other/Builder/Commodity Design/Style Damp Safety Rated 2 Year WarrantyOverall Dimensions 19 W x 2.5 H Item Weight 5.07 lbs. Please note that this product is designed for use in the United States only 110 volt wiring , and may not work properly outside of the United States.