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Active grow t8 ho 4ft led grow lamp red bloom pro full spectrum.
Active grow led grow lights red bloom pro full spectrum.
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Active grow t8 ho led grow lamp microgreen trays.
Active grow t8 ho led grow lamp microgreens grow light.
Active grow t8 ho led grow lamp ballast bypass reminder.

T8 HO 4FT LED Grow Lamp (40W Eqv.) – Red Bloom Pro Spectrum

4-Pack
$171.00
/
Choose Your Spectrum: Red Bloom Pro
Sun White
Sun White Pro
Red Bloom Pro
  • In stock, ready to ship
  • Inventory on the way
  • Free US shipping (+$99)
  • Easy returns within 30 days

Easily convert your fixtures & achieve fuller, heartier plants with our high-output T8 LED grow lamps

  • Produce stronger roots & create new leaf & budding sites
  • Slash your energy & HVAC bills with 45% power savings
  • Grow consistent & uniform trays of plants
  • No flickering, buzzing or longevity issues
  • Low heat output is safe for plants & growers
  • Exceptional 30,000-hour lifetime

🌱 Tissue culture
🌱 Vegetables
🌱 Fruits
🌱 Flowers
🌱 Tropical plants
🌱 Carnivorous plants

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 $100 in the continental US. Free ground shipping on all orders over $250 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 that promote sustainable agricultural practices.  

Active grow t8 ho led grow lamp spectrums.

Better Light Spectrums = Better Plant Growth

Research engineered light recipes for your plant type & growth stage
Red Bloom Pro Spectrum

Pink light is power, and not a photon is wasted with this chlorophyll-boosting, full-spectrum light that hits precisely on 450 nm (blue) and 660 nm (red) wavelengths. This spectrum also features additional far-red light that increases plant photosynthesis rates via the Emerson Effect. Designed to increase plant mass, speed up plant growth and promote healthy carotenoid development, budding and fruiting.

Active grow led grow lights red bloom pro full spectrum.

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 3-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/PR
  • Base: G13
  • Power: 22 watts
  • Input voltage: 120-277V 50-60Hz
  • Ballast compatible: No
  • Rated power factor: >95%
  • PPF output (400-700 nm): 38 µmol/s
  • PBAR output (280-800 nm): 42 µmol/s
  • PPF efficacy: 1.73 µmol/J
  • PBAR efficacy: 1.91 µmol/J
  • Spectrum: Red Bloom Pro Spectrum
  • CRI: 70 (typical)
  • Dimensions: 47"x1.02"x1.02" (1194x26x26mm)
  • Weight: 0.40 lbs (181 g)
  • Dimmable: No
  • Lifetime: 30,000 hours
  • Warranty: 3 years
View spec sheet

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.

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Grower Product Review

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

Watch now

Customer Reviews

Based on 26 reviews
96%
(25)
4%
(1)
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100.0
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Greg

Easy to build your own design. I originally bought 88 lights and designed my first room and my plants are producing 4x as much as they were before. I couldn't be happier with these lights so i decided to buy 100 more and make another room. The staff at active grow are great to work with and had my order to me very fast. I will post pictures as soon as i can

C
Chad J.

I purchased the red bloom and I must say the light is very nice and stays cool, will be purchasing the Sun white pro to take place of my mars hydro. Really enjoying the lights right now, will keep an update. 4 stars just because I had to swap tombstones but I love these bulbs right now.

Thanks Active grow for your time and efforts for our plants to stay strong.

J
Jerry M

Your plants need these bulbs! Replacing LED daylight bulbs (not grow light) with these. Plants are starting to get greener and look healthier. So far so good. Packaging to protect bulbs during shipment was absolutely amazing. All working perfectly. Plan to order more soon.

J
JAMES B HOUSER

Very Happy with these lights. the lights are amazing. No noise and no increase to my electricity bill. I have bought four sets of these now and I have not had one problem.

J
JAMES HOUSER

Very happy with the lamps. Easy to install and my plants love it!!

M
Millilee

As advertised. great value

A
Amy P

Houseplants love it. Sturdy construction that provides warm light for houseplants. Really brightened up the basement.

J
JRR

Very well packed. Good instructions. All 4 tubes worked well and seemed quite bright.

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