T5 Fluorescent Grow Light Bulbs & Fixtures

Quantum BadBoy T5 HO 4 ft , 8 Bulb Fixture 432w (fixture only)
$239.59

Out of stock

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Prism Lighting Science High Output (HO) 4' T5 54w Bulbs - 6500K
Special Price $5.39 Regular Price $6.34

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Quantum BadBoy T5 HO 4 ft , 16 Bulb Fixture 864w (fixture only)
$545.77 As low as $536.32

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Quantum BadBoy T5 HO 4 ft , 12 Bulb Fixture 648w (fixture only)
$470.25 As low as $461.95

Out of stock

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Quantum BadBoy T5 HO 4 ft , 6 Bulb Fixture 324w (fixture only)
$194.46

Out of stock

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AgroFlex T5 HO 48 - 4 ft 8 Lamp T5 Fixture - 120 Volt
Special Price $132.01 Regular Price $155.31

Out of stock

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AgroFlex T5 HO 42 - 4 ft 2 Lamp T5 Fixture - 120 Volt
Special Price $79.05 Regular Price $93.00

Out of stock

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AgroFlex T5 HO 24 - 2 ft 4 Lamp T5 Fixture - 120 Volt
Special Price $66.62 Regular Price $78.38

Out of stock

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Agrobrite T5 432W 4' 8-Tube Fixture with Lamps, 240V
Special Price $240.42 Regular Price $282.85

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Agrobrite T5 216W 4' 4-Tube Fixture with Lamps, 240V
Special Price $153.95 Regular Price $181.12

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AgroBrite T5 4FT 12 Tube Fixture w/ Bulbs (was EnviroGro)
Special Price $343.57 Regular Price $404.20

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AgroBrite T5 4FT 8 Tube Fixture w/ Bulbs (was EnviroGro)
Special Price $226.30 Regular Price $266.23

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AgroBrite T5 4FT 6 Tube Fixture w/ Bulbs (was EnviroGro)
Special Price $195.25 Regular Price $229.71

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AgroBrite T5 4FT 4 Tube Fixture w/ Bulbs (was EnviroGro)
Special Price $141.36 Regular Price $166.31

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AgroBrite T5 2FT 8 Tube Fixture w/ Bulbs (was EnviroGro)
Special Price $161.84 Regular Price $190.40

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AgroBrite T5 2FT 4 Tube Fixture w/bulbs (was EnviroGro)
Special Price $116.15 Regular Price $136.65

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In fluorescent tubes, the “T” denotes how many eighths in the diameter of the tube. That means the diameter of a T5 is ⅝ inch. Typically, the smaller the diameter, the higher the efficiency. Shop for more flourescents here, also available as T12 and compact bulbs. Fluorescents are good for starting or expanding a grow space.

The length of tubes and fixtures that are 4, 6 or 8 tubes wide provide excellent coverage. Fluorescents are good for propagation and vegging because their spectrum replicates daylight. Newer high-output fluorescents are also good for flowering and fruiting because of more red output. Bulbs change out easily.

Replace fluorescents annually. It’s a good idea to keep some spares, and the bulb cost is low, with even specialty HOs priced less than $7 apiece. Packs of six or eight lower the per-bulb price even more.

T5 Fluorescent Grow Lights