Name: T8 HO 4FT LED Grow Lamp (40W Eqv.) – Sun White Spectrum
Brand: Active Grow
SKU: AG/22T8BB/4FT/WS/4
Price: 119.0 USD
Availability: InStock

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4-Pack

$119.00

Choose Your Spectrum: Sun White

Quantity

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 full spectrum 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
🌱 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 $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.

Sun White Spectrum

This all-natural light spectrum boosts healthy growth rates for house plants, microgreens, flowers, fruits and more. By mimicking sunlight conditions with a high CRI of 95, the Sun White Spectrum will make your garden look more vivid and it will be easier to detect pests and deficiencies before they spread. This truly full-spectrum light extends beyond the traditional PAR range (400-700 nm) to include far-red wavelengths that increase 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 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/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: 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

Active grow t8 ho led grow lights vs t8 t12 fluorescent tubes energy spectrum ppfd

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.

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Wiring diagram

I needed instructions on the T8 HO ballast bypass.
I spoke with Taylor Schaberg, and he promptly emailed me the necessary information.
Well done!

Worth the investment

Converted 2 of 3 starter trays to the sun white leds'. Ended up moving everything out of the fluorescent trays because of the obvious benefits.

LEDs for Growth Performance

This is a well built LED, great fulfilment turnaround, packaged to survive transit, and performant. Thanks AG for a great product.

Got them on!

I have an old, originally fluorescent, lighted plant stand that I had planned to convert to LED one of these days. When the ballast in one light blew a few weeks ago, I decided it was time. These were the only bulbs I found which would fit. I finally got them in today. It was a struggle to rewire the first one, but it clicked so that the second one was much easier and they are working! It’s too soon to tell how long-lasting they are and how well the plants will do under them, but I’m hopeful!

Great light and great service response.

The product is exactly as advertised, and is a great way to get a head start on the garden each year. One of the lights was damaged before it arrived. The replacement light was immediately processed and received in good order.

We mainly use the grow lights for seed starting in March and growing during the winter. We use the lighting in the greenhouse this year because we were not getting enough sunny days and there was a lot of rain this year, so the LED lighting really made a difference. Thank you for your products they work great!

Plants love 'em

WARNING! If you use these bubs to grow plants, be advised you will need more room for your plants as they grow like crazy using these bulbs.

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.

Grow Smarter, Not Harder

Let us know how we can help you grow happier and healthier plants in your home or commercial facility

T8 HO 4FT LED Grow Lamp (40W Eqv.) – Sun White Spectrum

Better Light Spectrums = Better Plant Growth

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T8 HO 4FT LED Grow Lamp (40W Eqv.) – Sun White Spectrum

Better Light Spectrums = Better Plant Growth

Featured Review

T8/T12 LED Grow Light Ballast Bypass Instructions

Customer Reviews

Grow Smarter, Not Harder

Contact Us