31 watt - 22.5" - T8 - Medium Bi-Pin (G13) Base - 3,500K - Mod-U-Line - U-Bend | GE Fluorescent Light Bulb
From the Manufacturer
GE 41777 31-Watt Mod-U-line T8. Base Face to Top of Lamp: 22.250 cm, Bulb Diameter (DIA) [Nom]: 1.000 cm, Bulb Diameter in Bend [Min]: 0.940 cm, Bulb Diameter in Bend [Max]: 1.100 cm, Bulb Diameter in Legs [Min]: 0.940 cm, Bulb Diameter in Legs [Max]: 1.100 cm, Bulb Material: Soda lime, Cathode Resistance Ratio - Rh/Rc [Min]: 4.25, Cathode Resistance Ratio - Rh/Rc [Max]: 6.5, Color Rendering Index (CRI): 82, Color Temperature: 3,500 K, Current Crest Factor [Max]: 1.70000004768371, GE Designation: F32T8, Initial Lumens [Nom]: 2,725.00, Lamp Legs Center to Center Length: 1.625 cm, Maximum Overall Length (MOL): 22.6000 cm, Mean Lumens [Nom]: 2500, Mercury Content: 8.000 mg, Minimum Overall Length: 22.2500 cm, Nominal Initial Lumens per Watt: 88, Nominal Length: 22.500 cm, Open Circuit Voltage (rapid start) Min at Temperature: 315.00 V at 10 -DegreeC, Picograms of Mercury: 160.0 pg, Product Technology: Linear Fluorescent, Rated Life [Nom]: 20,000-Hours, Starting Temperature [Min]: 10 K, Voltage [Nom]: 135, Wattage: 31GE fluorescent lamps have become a universal standard in office and other lighting applications. The characteristics of fluorescent lamps vary widely according to the lamp type. In general, fluorescent lamps have low operating costs because they're efficient, long living, high quality, and rapid starting. Fluorescent lamps can cost significantly less to operate over their lifetime than incandescent lamps. Life ratings for fluorescent lamps range from 6,000 to 36,000 hours based on the industry standard of 3 burning hours per start. The Light Quality GE Starcoat T5 and T8 lamps offer higher color rendering and lumen maintenance of 92 percent-95 percent.