Fluorescent Bulbs > ALL PRODUCTS
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Keystone Lighting ktl-fc8t9-cw 22w T9 Circline Fluorescent Lamp 4100K
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Keystone Lighting ktl-fc8t9-dl 22w T9 Circline Fluorescent Lamp 6500K
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TCP 801023 23W Spiral SpringLight CFL
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TCP 4892750K 27W SpringLamp Pro CFL
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TCP 4892730K12 27W T3 CFL Full Spring Lamp 12 Pack
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TCP 4T22341K 23W SpringLamp T2 Pro CFL
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TCP 33123SP 23W CFL Spring Lamp
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TCP 4892735K 27W SpringLamp Pro CFL
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TCP 4892341K12 23W T3 CFL Full Spring Lamp 12 Pack
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TCP 80102365 23W Spiral SpringLight CFL
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TCP 3202731K 27W T9 Circline CFL Lamp
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TCP 4892365K 23W SpringLamp Pro CFL
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TCP 33127SP35K 27W CFL Spring Lamp
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TCP 80102341 23W Spiral SpringLight CFL
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TCP 4892312 23W T3 Ultra Compact CFL Lamp 12-Pack
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Benefit from the energy-saving and long-lasting properties of fluorescent lighting. This popular technology generates light by running an electric current through a tube filled with mercury-vapor gas. Some fixtures come with added protection by means of tube guards for fluorescent lights that can slide over the linear tube light to protect it or even to change the color of the light. Fluorescent bulbs come in different shapes, most commonly linear fluorescent lamps, circular fluorescent lamps or compact fluorescent lamps. Some popular models include T4 twin tubes, T12 or T8 bulbs, commonly used in commercial applications. T8 light bulbs also come as U-bend or shatter-proof fluorescent tubes for added versatility of applications. Explore our different categories and selection of fluorescent light bulbs 4 inches to save money and energy while providing the ideal illumination for your project.