GE 97597 Series 97597-F13Dbx/841/Eco4P-13 Watt Quad-Tube Compact Fluorescent Light Bulb, 4 Pin, 4100K Brand: GE wattage: 13 watt base Type: G24Q-1 Color temperature: 4100 kelvin CRI: 82 life hours: 12,000 Base Type: G24Q-1 (4 pin) Average life hours: 12,000