Fluorescent Bulbs > ALL PRODUCTS
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Eiko qt18-35-4p 18w T4 Quad-Tube CFL
$47.50($4.75/unit) -
Eiko qt13-27 13w T4 Quad-Tube CFL
$57.50($5.75/unit) -
Eiko sp27-50k 26w T2 CFL Lamp
$5.99 -
Eiko dt24-30-rs 24w T5 Duo-Tube CFL
$5.99 -
Eiko sp19-35k 18w T2 CFL Lamp
$4.75 -
Eiko tt26-50 26w T4 Triple-Tube CFL
$149.90($14.99/unit) -
Eiko qt18-27-4p 18w T4 Quad-Tube CFL
$37.50($3.75/unit) -
Satco s7792 65W T4 Triple Twin Tube CFL
$51.99 -
Eiko dt36-35-rs 36w T5 Duo-Tube CFL
$12.99 -
Eiko sp27-41k 26w T2 CFL Lamp
$11.99 -
Eiko dt18-35-rs 18w T5 Duo-Tube CFL
$5.75 -
Eiko sp19-27k 18w T2 CFL Lamp
$5.75 -
Satco s8227 13w T2 Spiral CFL 2700K
$10.99 -
Satco s8159 40w T5 Circline High Performance Lamp 3500K
$20.99 -
Satco s8156 22w T5 Circline High Performance Lamp 3500K
$18.99
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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.