This flush mount ceiling light from Access Lighting is for use with two 18-watt compact fluorescent bulbs.Bulb Base: GU-24 Bulb Type: Fluorescent Canopy Depth: 1 Canopy Diameter: 10 Canopy Indentation: 1 5 Certification: CETL Collection: Altum Diameter: 12-1 2 Energy Star: No Finish: White Glass: Opal Height: 3-1 2 Kelvin: 2700k Location: Damp Lumens Per Watt: 69.45 Material: Metal Number of Lights: 2 Shade Material: Glass Total Nom Lumens: 2500Lm Voltage: 120 Wattage: 18 Width: 12.5