Feit Electric FC8T9/WW Fluorescent Bulb Circular 22W 4-Pin T9 G10 (2-Pack) Provide reliable, energy-efficient lighting for specialized fixtures with the Feit Electric 017801008623 22-watt circular fluorescent bulb, designed for use in under-cabinet lighting, task lamps, vanity mirrors, and other compact fixtures requiring a circular tube design. Featuring a warm white color temperature, this T9-sized bulb delivers a soft, inviting light that enhances visibility while maintaining a comfortable ambiance in kitchens, bathrooms, and workspaces. This fluorescent bulb operates on 120 volts and features a 4-pin G10q base, ensuring compatibility with fixtures designed for circular tubes with quad-pin connections. At 8 inches in diameter, the compact tubular (T) shape fits neatly into tight enclosures where space is limited. With a 22-watt power draw, it offers a balanced combination of brightness and efficiency, making it a dependable choice for areas that require consistent illumination. The warm white light output provides excellent color rendering, helping surfaces and skin tones appear natural and vibrant. Designed for indoor use, this bulb is commonly used in vanities, makeup mirrors, and appliance lighting where focused, even light is essential. It is constructed with durable glass and a plastic end cap to resist breakage and ensure stable electrical contact during operation. This model is not a retrofit LED bulb?this is a true fluorescent lamp that requires a compatible ballast and starter system in the fixture. It is not compatible with standard E26 medium base sockets despite some listings indicating otherwise; the correct base is G10q 4-pin for use in circular fluorescent fixtures only. Features - 22-watt circular fluorescent bulb for compact, high-performance lighting - T9 tube size with 8-inch diameter for use in circular fixtures - 4-pin G10q base ensures secure connection and proper electrical contact - Warm white light enhances visibility and creates a welcoming atmosphere - Ideal for under-cabinet lighting, vanity mirrors, makeup stations, and task lighting - Energy-efficient fluorescent technology for reduced power consumption - Operates at 120 volts for standard household compatibility - Tubular glass construction with durable plastic end caps - Designed for use in enclosed fixtures requiring circular fluorescent lamps - Requires compatible ballast and fixture?does not work in standard lamp sockets - Long-lasting performance in properly maintained systems - Suitable for residential and light commercial indoor applications Specifications - Brand Name: Feit Electric - Part Number: FC8T9/WW - UPC: 017801008623 - Model Number: 017801008623 - Product Type: Fluorescent Bulb - Light Type: Fluorescent - Shape: Tubular (Circular T9) - Wattage: 22 Watts - Voltage: 120 Volts - Bulb Base: G10q (4-Pin) - Color: Warm White - Color Rendering Index: 82 (typical for warm white fluorescent) - Diameter: 8 inches - Tube Size: T9 - Light Source Type: Fluorescent (not LED) - Special Feature: Energy Efficient - Specific Use: Vanity, Task, Appliance, Under-Cabinet Lighting - Material: Glass Tube with Plastic Base - Product Dimensions: 3" x 1" x 2" (approximate packaging) - Item Weight: 6.2 oz (0.39 lbs) - Number of Items: 1 - Included Components: 1 Fluorescent Bulb - Manufacturer: Feit Electric Co - Country of Origin: China Product Application The Feit Electric 017801008623 22W circular fluorescent bulb is engineered for use in fixtures that require a compact, high-output light source with a circular design. Commonly found in bathroom vanities, makeup mirrors, kitchen lighting, and commercial display units, it delivers consistent, energy-efficient illumination where precise fit and warm light quality are essential. When replacing a burned-out circular bulb, this model ensures reliable performance in compatible ballast-driven systems. Always verify fixture compatibility before installation to ensure proper operation. A trusted choice for homeowners and technicians maintaining fluorescent lighting systems.