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Fluorescent Bulbs

Valid May 1–31, 2026, until 11:59 PM ET. Limited quantities while supplies last. Cannot be combined with any other coupon, discount, promotion, clearance item, or volume discount. Subject to change at any time.
Valid June 1 - 30th, 2026, until 11:59 PM ET. Limited quantities while supplies last. Cannot be combined with any other coupon, discount, promotion, clearance item, or volume discount. Subject to change at any time.

Fluorescent Bulbs > All Products

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  1. eiko_sp19-35k_1

    Eiko sp19-35k 18W T2 CFL Lamp

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  2. eiko_sp27-41k_1

    Eiko sp27-41k 26W T2 CFL Lamp

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  3. eiko_sp105-41-med_1

    Eiko sp105-41-med 105W CFL Lamp

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  4. eiko_sp7b10-e12-27k_1

    Eiko sp7b10-e12-27k 7W B10 Decorative CFL Bulb

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  5. eiko_sp15g25-41k_1

    Eiko sp15g25-41k 15W G25 Decorative CFL Bulb

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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.