Four foot fluorescent T5 grow light bulbs

$42.99

Last updated 2026-11-03

These 4 foot fluorescent tubes are designed for high-output T5 fixtures commonly used in seed starting and vegetative growth. Each bulb operates at 54W and produces a 6500K cool white light, which mimics the bright daylight of spring. This specific color temperature is effective for preventing leggy growth in young seedlings.

The pack includes five tubes, providing enough replacements for a standard multi-bulb shop light or grow rack. These T5 HO bulbs are known for their efficiency and even light distribution across a flat canopy. They are a standard choice for growers who prefer traditional fluorescent technology for its reliability and low heat emission.

Using these bulbs helps maintain a consistent environment for indoor gardening projects. The 4 foot length is compatible with most industrial and hobbyist grow light ballasts. These listings provide a straightforward replacement option for maintaining the light intensity required for healthy indoor plant development throughout the year.

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