Light Efficient Design LED-7320-40K-G2 LED Retrofit Lamp, 10W, 4-pin LED Retrofit Lamp, Wattage: 10W, Base: 4-Pin (G24q/GX24q), Lumens: 1000, Color Temperature: 4000K, CRI: >80, Rated Average Life: 50,000 Hrs. Type A/B Universal Driver - Works on Electronic Ballast or 120-277V Line Voltage. Replaces CFL up to 32W.