This Access Lighting flush mount ceiling light works with two 18-watt compact fluorescent bulbs.Bulb Base: GU-24 Bulb Type: Fluorescent Canopy Diameter: 14 Canopy Indentation: 1 Certification: CETL Collection: Iron Diameter: 16 Energy Star: No Energy Star Compliant: Yes Finish: Brushed Steel Glass: Frosted Height: 4 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: 16