GE 20531 - F13DBX23T4/SPX41 - NAED 20708 - 13 Watt - 2 Pin GX23-2 Base - 4100K - CFL Light Bulb Brand: GE Lighting - Part No.: 20531 - UPC: 43168975902 - Wattage: 13 Watt - Base Type: GX23-2