Interlux T5 Grow Bulb - 4 ft - 6500K - 54W

Cool Daylight Light for Vegetative Growth - 54W

Plants kept under weak or warm-toned light often stretch and grow thin. This T5 fluorescent bulb gives a cool, daylight-balanced 6500K spectrum that suits vegetative growth, the stage when plants build stems and leaves. It is a full-spectrum, 54 watt, 4-foot bulb made for LuxStar T5 lighting fixtures.

Sold as a single bulb, it suits a hobbyist replacing one tube, a regular indoor grower filling out a fixture, or a larger operation that wants a consistent color temperature across a vegetative room.

Key Features & Benefits

• 6500K color temperature — a daylight-balanced output suited to vegetative growth.
• Full-spectrum output — a broad range of light for general plant development.
• 54 Watt T5 format — a high-output linear bulb for compact fixtures.
• 4-foot length — fits fixtures built for this bulb size.
• LuxStar T5 compatibility — made for use in LuxStar T5 lighting fixtures.

Who Should Use Interlux T5 Grow Bulb

Growers who start seedlings or clones, or who run indoor vegetative areas with T5 fixtures, will find this bulb a fit. It also suits anyone replacing a worn tube in a LuxStar T5 fixture.

About Interlux T5 Grow Bulb

The Interlux T5 Grow Bulb is a 4-foot, 54 Watt, 6500K full-spectrum fluorescent bulb. It measures 45.5 in long and 0.8 in in width and height, and ships at 0.3 lb. It is sold each.

Frequently Asked Questions

Q: What stage of growth is this bulb for?
A: The 6500K color temperature is daylight-balanced and suits vegetative growth. Many growers use cooler light for seedlings and clones. For flowering, growers usually switch to a warmer light.

Q: What does 6500K mean?
A: K stands for Kelvin, a measure of a light's color appearance. A rating of 6500K looks like cool, bright daylight, and is bluer than warm-white bulbs.

Q: Which fixtures does it fit?
A: It is listed for use in LuxStar T5 lighting fixtures. Check that any other fixture takes a 4-foot T5 bulb and matches the wattage before you buy.

Q: How long is the bulb?
A: The bulb is a 4-foot T5, and its product length is 45.5 in. Its width and height are each 0.8 in.

Q: How many bulbs come in one order unit?
A: This listing is for one bulb, sold each.