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  • Airport Lighting
  • Aviation Obstruction Lighting
  • Emergency Vehicle Warning Lights, Lamps & Bulbs
  • Fluorescent Light Bulbs
  • Halogen Light Bulbs
  • H&P Hughey Phillips Obstruction Lighting
  • Heliport Lighting
  • Incandescent Light Bulbs
  • HID Light Bulbs
  • LED Light Bulbs
  • Photography Lighting
  • Specialty Lighting & Light Bulbs
  • Westinghouse Light Bulbs
  • Clearance and Closeouts - Full Lots of Bulbs

    • Shop by Brand

  • EIKO
  • TCP
  • SYLVANIA LEDVANCE
  • WESTINGHOUSE
  • USHIO
  • TWR
  • HUGHEY & PHILLIPS
  • GENESIS LAMP
  • WHELEN
  • SANYO
  • View all Brands

    • Fluorescent Grow Light Bulbs

    • F15T8/GRO/AQ/RP Fluorescent Light Bulb

      F15T8/GRO/AQ/RP Fluorescent Light Bulb

      Description: F15T8/GRO/AQ/RP Fluorescent Light Bulb 15W T8 preheat fluorescent lamp, GRO-LUX phosphor for plant growth and aquarium applications Light Bulb Cross References (Also known as} F15T8/GRO/AQ/RP

      $12.10 $11.55
      Add to Cart
    • F20T12/GRO/AQ/RP Fluorescent Light Bulb

      F20T12/GRO/AQ/RP Fluorescent Light Bulb

      Description: F20T12/GRO/AQ/RP Fluorescent Light Bulb 20W, T12 preheat fluorescent lamp, GRO-LUX phosphor for plant growth and aquarium applications, retail pack Light Bulb Cross References (Also known as} F20T12/GRO/AQ/RP

      $12.10 $11.55
      Add to Cart
    Compare Selected

    Genesis Lamp offers top-quality fluorescent grow bulbs and fluorescent grow lighting including F15, F20 and T5 grow lights. We have a huge selection of fluorescent grow lights for every type of indoor gardener from beginners to hobbyists to professional growers.

    Our popular T5 grow lights are powerful, quiet and energy efficient compared to other fluorescent grow lights. You can use these T5 grow lights for any stage of plant growth. This includes seed starting lights, cloning lights, vegetative growth lights and even special “finishing UV lights. We can also customize a T5 grow light system to fit your needs. You'll find a wide variety of T5 grow light bulbs in our extensive catalog, including two-foot T5 (F24T5HO) and four-foot T5 (F54T5HO) versions.

    Options include bloom 3000K, balanced 5400K, grow stage 6500K and 10,000K bulbs. For flowering applications, a UV-A plus lamp is available.