Bulbrite 524413 - 20PK - 13W - T4 Twin Tube - 4-Pin - 2GX7 Base - 120V - 2700K - 10,000Hrs - Dimmable - Warm White - CFL 13 Watt, 820 Lumen, 120 Volt, 2700 Kelvin, 82 CRI, 10,000 Average Rated Life Hours, 2GX7 Base Dimmable Fully dimmable capability allows for increased energy efficiency 20 - Compact Fluorescent T4 4-Pin Warm White Light Bulbs