T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum
T8 HO 4FT LED Grow Lamp – Sun White Spectrum

T8 HO 4FT LED Grow Lamp – Sun White Spectrum

4-Pack
Regular price$119.00
/
Choose Your Spectrum: Sun White
  • Free US shipping (+$200)

Our high output T8 grow lamps guarantee higher germination rates & faster growth cycles

  • Produce stronger roots & create new leaf & budding sites
  • Grow consistent & uniform trays of plants
  • No flickering, buzzing or longevity issues
  • Low heat output is safe for plants & growers
  • High light output with minimal energy costs
  • Exceptional 30,000-hour lifetime

🌱 Tissue culture
🌱 Microgreens
🌱 Leafy greens
🌱 Herbs
🌱 Flowers
🌱 Vegetables
🌱 Carnivorous plants
🌱 Hemp

4x 22W T8 HO Ballast Bypass 4FT LED Grow Lamps
1x Lamp installation guide
2x Fixture modification stickers

This ballast bypass LED grow lamp works with existing T8 fluorescent light fixtures by bypassing the ballast and wiring the lamp holders (tombstones) to a single end. Without the need for a ballast, these universal voltage 120-277V lamps do not flicker, buzz or experience longevity issues.*Requires bypassing the ballast during installation. Requires non-shunted lamp holders (tombstones). Please refer to the T8/T12 LED GROW LIGHT BYPASS BALLAST INSTRUCTIONS VIDEO for detailed installation steps.

Free ground shipping on all orders over $200 in the continental US. Free ground shipping on all orders over $350 in HI, AK and Canada (BC, MB, NB, AB, ON and SK only). Products ship within 1-2 business days from date of purchase.

Active Grow proudly participates in the 1% for the Planet® program and donates 1% of all annual sales to organizations making a positive environmental impact.  

Better Light Spectrums = Better Plant Growth

Research engineered light recipes for your plant type & growth stage
Sun White Spectrum

The spectrum that started it all and can grow almost anything is a full-spectrum light formulated to mimic natural sunlight conditions and is ideal for every stage of plant growth. High CRI 95 light accentuates plant coloration and makes visual inspection easier. Includes 660 nm (red) and 730 nm (far-red) wavelengths to boost photosynthesis rates via the Emerson Effect.

Featured Review

Amelia from Amelia’s Indoor Garden gives a 6-week update on using Active Grow T8 HO LED Grow Lamps for growing vegetables indoors.

Watch now

Bypass the Hassle
This ballast bypass LED grow lamp works with existing T8 fluorescent light fixtures by bypassing the ballast and wiring the lamp holders (tombstones) to a single end. Without the need for a ballast, these universal voltage 120-277V lamps do not flicker, buzz or experience longevity issues. *Requires bypassing the ballast during installation. Requires non-shunted lamp holders (tombstones). Please refer to the T8/T12 LED GROW LIGHT BYPASS BALLAST INSTRUCTIONS VIDEO below for detailed installation steps.

Sustainable Horticultural Lighting
Replaces 32W T8/40W T12 4FT fluorescent lamps. Uses 45% less energy, greatly reducing heat output, HVAC costs and the need for more vertical space.

Plant Centric Design
Designed specifically for horticulture use with a 100% more effective spectrum for plant growth and a high PBAR (280-800nm) output and efficacy.

ClearSync Film Technology
The ClearSync protective film improves water resistance and prevents glass shattering without sacrificing photon output.

Long Lifetime & Guarantee
Features an exceptional 30,000-hour lifetime and a 1-year warranty. Active Grow is locally based in Seattle, WA providing same day response and friendly support.

Certified Safe
All lamp components and manufacturing processes meet the highest industry safety standards.

Rebates Available
This LED retrofit solution may be eligible to receive large utility rebates for commercial projects. Contact us to learn more.

Specifications
  • Model number: AG/22T8BB/4FT/WS
  • Base: G13
  • Power: 22 watts
  • Input voltage: 120-277V 50-60Hz
  • Ballast compatible: No
  • Rated power factor: >95%
  • PPF output (400-700 nm): 41 µmol/s
  • PBAR output (280-800 nm): 44 µmol/s
  • PPF efficacy: 1.86 µmol/J
  • PBAR efficacy: 2.00 µmol/J
  • Spectrum: Sun White Spectrum
  • CRI: 95 (typical)
  • Dimensions: 47"x1.02"x1.02" (1194x26x26mm)
  • Weight: 0.40 lbs (181 g)
  • Dimmable: No
  • Lifetime: 30,000 hours
  • Warranty: 1 year

T8/T12 LED Grow Light Ballast Bypass Instructions

Follow along and learn how to easily bypass a standard T8/T12 fixture’s ballast.

Watch now
Grow Lamp Intro & Fluorescent Comparison

Learn how Active Grow T8 HO LED Grow Lamps outperform T8 HO fluorescent lamps by examining energy consumption, light spectrum and PPFD coverage.

Grower Product Review

Corey from CoreysCave reviews the Active Grow T8 HO LED Grow Lamps for growing microgreens indoors.

Customer Reviews

Based on 30 reviews
97%
(29)
3%
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H
HappyKitchen

Exactly What I Wanted. I searched locally for this kind of light with no success. After weeks of researching, I finally settled on this product. With the constant source of light, I now have seedlings sprouting and I couldn't be happier.

G
Gary A.

I modified my existed older grow light setup by removing the ballasts and that went well. Taylor's instructional video was a big help. It's still early but I'm excited to see good results this year. I'm planning to modify my remaining setups.

p
philip rebstock

Active Grow Great Customer Service. I purchased the Active Grow T8/T12 High Output - Plant Grow Lights for Indoor Plants, Germination & Microgreens - 22W - Sun White Full Spectrum High CRI 95! I purchased them in July but due to health was unable to try them till this November, Despite the best shipping container packaging I have ever seen two of the bulbs would not work. When I contacted Active Grow directly they were friendly and willing to send replacements immediately..! The product is very bright with superior specifications and exceeds our expectations! I can highly recommend them for both their great customer service and their quality product ! Looking forward to doing more business with them !!!

N
Neil

I wanted directly wired bulbs so that I didn't need to worry about ballast compatibility, I wanted full spectrum light, and I wanted to retrofit my existing fixtures rather than throwing them away and buying new ones. In a very extensive search, Active Grow bulbs were the only ones I found which met my criteria. I was a bit apprehensive about having to buy four bulbs sight unseen, but now that I have them I'm really pleased that I can retrofit two fixtures rather than just one (which was my initial plan).

e
evan wertz

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a
aeslowhand

Very bright bulbs. Easy to convert standard florescent fixture to LED to fit these bulbs. Very bright. Well packaged.

G
Gabriel Zanotti-C

Using these lights for microgreens we get a better growth in the cotyledons compared to other light spectra, generating a higher yield at harvest. The sun white Spectrum allow us to grow microgreens in general with excellent results like better color, flavor and faster growth in our microgreens. The possibility for testing and finding out the ideal formulated light spectrum for each species using others' light spectrum is fantastic!

k
kathy

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