GE 33774 Garage & Basement T9 Circline Fluorescent Bulb, Cool White, 8", 22W, Each

GE Garage and Basement Circline Fluorescent Bulbs' cool white light is perfect for illuminating sizable spaces throughout your home. Use in large open spaces in your home including finished and unfinished basements, garages and rec rooms. 1.1" diameter T9 circline with 4-pin (G10q) base 4100K cool white light appearance Cool white light perfect for sizable spaces Lasts 5.5 years based on 6 hours per day usage For use in large spaces such as basements and garages. General Characteristics Lamp type: Linear Fluorescent, Circular Bulb: T9 Base: 4-Pin (G10q) Primary Application: Full Wattage; Garage & Basement Rated Life (NOM): 12000 hrs Bulb Material: Lead glass Starting Temperature (MIN): 10 °C(50 °F) Mercury Content (NOM): 7 mg Picograms of Mercury (NOM): 707 picograms Hg per mean lumen hour Photometric Characteristics Initial Lumens (NOM): 1100 Mean Lumens (NOM): 825 Nominal Initial Lumens per Watt (NOM): 50 Color Temperature (NOM): 4100 K Color Rendering Index (CRI) (NOM): 60 Electrical Characteristics Wattage (NOM): 22.0 Cathode Resistance Ratio - Rh/Rc (MIN): 4.25 Cathode Resistance Ratio - Rh/Rc (MAX): 6.5 Current Crest Factor (MAX): 1.7 Dimensions Maximum Overall Length (NOM): 8.2500" (209.5 mm) Nominal Length (NOM): 8.2500" (209.5 mm) Bulb Diameter (MIN): 1.0300" (26.1 mm) Bulb Diameter (MAX): 1.2200" (30.9 mm) Bulb Diameter (NOM): 1.1250" (28.5 mm) Inside Diameter (MAX): 6.1900" (157.2 mm) Outside Bulb Diameter (MIN): 8.0000" (203.2 mm) Outside Bulb Diameter (MAX): 8.5000" (215.9 mm) Opposing Wall Inside Base (NOM): 6.1300" (155.7 mm).