Lamp: CFL; Bulb Shape: T4; Bulb: Quad Tube; Base: 4-Pin G24q-2; Watts: 18W; Voltage: 100V; Color: Warm White; Lumens: 1250: Color Temperature: 2700K; Dimmable: Yes; Average Life - hrs: 17000; CRI: 82; Manufacturer Series: Ecolux®; Contains Mercury: Yes; Wattage Equivalency: 75W