Fluorescent Bulbs > ALL PRODUCTS
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Satco s6501 22w T9 6500K T9 Circline Fluorescent Lamp
$7.99 -
Satco s6500 22w T9 4100K T9 Circline Fluorescent Lamp
$6.99 -
Satco s6502 22w T9 3000K T9 Circline Fluorescent Lamp
$7.99 -
Keystone Lighting ktl-fc8t9-cw 22w T9 Circline Fluorescent Lamp 4100K
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Westinghouse WH-0601000 22W 8" T9 Circular Fluorescent Light Bulb
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Keystone Lighting ktl-fc8t9-dl 22w T9 Circline Fluorescent Lamp 6500K
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Satco s6509 20w T9 4100K T9 Circline Fluorescent Lamp
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Satco s2950 20w T9 Circline Fluorescent Bulb 3000K
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TCP 3202731K 27W T9 Circline CFL Lamp
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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.