GE Lighting 97594 13-Watt CFL Plug-In Double Biax Ecolux T4 Light Bulb 2700K, 1-Pack 13-Watt Light Bulb Rated Life of 12,000-Hours CFL Plug-In Double Biax Ecolux T4 Light Bulb 2700K GE for every application F13DBX/827/ECO4P