Naturalight Fluorescent Replacement Tube -28w/T5 Circular Daylight-Nautralight Fluorescent Replacement Tube: 28w/T5 Circular Specially designed tubes provide a load of light with 80% of the energy use, made by the strictest environment-friendly production standards This package contains one 9 inch in diameter replacement tube for Daylight's Naturalight 7 inch Magnifying Lamp #UN1030 Imported