T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum
T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum

T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Pro Spectrum

Regular price $219.00 Sale price$197.10
Choose Your Spectrum: Sun White Pro
  • Free US shipping (+$200)
  • Easy returns within 30 days

Our high efficacy T5 grow lights guarantee tighter internodal spacing & fuller, heartier plants

  • Produce stronger roots & create new leaf & budding sites
  • Innovative polycarbonate design is thin, lightweight & easy to clean
  • Easy dual on-off switches for veg & flower/fruit stages
  • Ballast-free design means no buzzing, flickering or replacement costs
  • Low heat output is safe for plants & growers
  • Daisy-chainable for a clean installation
  • High light output with minimal energy costs

🌱 Seed starting
🌱 Microgreens
🌱 Leafy greens
🌱 Herbs
🌱 Vegetables
🌱 Hemp
🌱 Cannabis veg

1x T5 HO 2.0 4FT 4 Lamp LED Grow Light
4x 25W T5 HO Ballast Bypass 4FT LED Grow Lamps
1x 6' 120V power cord (can also function as daisy chain cable)
2x Hanging hooks
1x Fixture installation guide
1x Lamp installation guide
2x Fixture modification stickers

The T5 HO 4FT 4 Lamp LED Grow Light provides uniform light coverage for up to a 3'x4' area for low light-medium light level requirement plants (at 24" above the plant canopy) and a 2'x4' area for medium light-high light requirement plants (at 12" above the plant canopy). For larger spaces where light crossover will come into play, please contact us to help dial in the correct number of fixtures required to achieve healthy light levels for your plant type and application.

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 that promote sustainable agricultural practices.  

Better Light Spectrums = Better Plant Growth

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

The Sun White Pro Spectrum is a commercial grade plant production spectrum formulated with higher blue light content and dedicated 660 nm (red) light in balance to promote strong root development, tight internodal spacing, higher rates of phytochemical production and increased flavonoid content. 

Featured Review

Learn about the T5 HO 2.0 LED Grow Light. The all-PC body provides growers with a lightweight (5.6 lbs), low-profile (1.7”) and high-performance LED fixture with 10% higher PPFD output than the previous generation.

Watch now

Bypass the Hassle
This LED grow light fixture uses Active Grow T5 HO Ballast Bypass LED Grow Lamps and runs directly off line voltage 120-277V. No ballasts means no buzzing, flickering, compatibility or longevity issues, giving your plants pure, uninterrupted lighting. *This fixture is for use with Active Grow T5 HO Ballast Bypass 4FT LED Grow Lamps only. Fluorescent lamps may not be used with this fixture as it does not contain ballasts. Only one side of the fixture’s lamp holders are wired. Insert the lamp end marked with L N into the fixture’s wired lamp holders.

Sustainable Horticultural Lighting
Uses 60% less energy than 54W T5 HO fluorescent lamps when used with Active Grow 25W T5 HO LED Grow Lamps, greatly reducing heat output, HVAC costs and the need for more vertical space. Provides savings of over $480 in energy costs over the lifetime of the lamps.

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.

Lightweight & Low Profile
All-PC body provides growers with a lightweight (5.6 lbs), low-profile (1.7”) and high-performance LED fixture with 10% higher PPFD output than the previous generation.

Seamless Connectivity
Connect up to 8 fixtures @120V or 16@208V/240V/277V on one circuit to make for an easier and cleaner installation.

Dual On-Off Switches
Waterproof dual on-off switches allow growers to run 2 or 4 lamps to meet target lighting requirements for different plant types and growth stages.

Shatterproof Design
Each lamp’s transparent PC body protects against water damage and shattering without sacrificing photon output.

Long Lifetime & Guarantee
Active Grow 25W T5 HO Ballast Bypass LED Grow Lamps feature an exceptional 30,000-hour lifetime and 1-year warranty. Each fixture has a 3-year warranty. Active Grow is locally based in Seattle, WA providing same day response and friendly support.

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

Rebates Available
When used with Active Grow T5 HO LED lamps, the T5 HO fixture may be eligible to receive large utility rebates for commercial projects. Contact us to learn more.

  • Model number: AG/T5HO4FIX/4FT/PS
  • Base: G5
  • Power: 100 watts (Active Grow 25W T5 HO 4FT LED lamps)
  • Amperage: 0.83A (Active Grow 25W T5 HO 4FT LED lamps)
  • Input voltage: 120-277V 50-60Hz
  • Rated power factor: >95%
  • PPF output (400-700 nm): 204 µmol/s
  • PBAR output (280-800 nm): 208 µmol/s
  • PPF efficacy: 2.04 µmol/J
  • PBAR efficacy: 2.08 µmol/J
  • Spectrum: Sun White Pro Spectrum
  • CRI: 88 (typical)
  • Daisy chain capable: Yes (max 8@120V/16@208V/240V277V)
  • Dimensions (l x w x h): 46.5″x12.5″x1.7″ (1181x318x43mm)
  • Weight: 5.6 lbs (2.5 kg)
  • Cord length: 6’/183cm
  • Dual on-off switches: Yes
  • Dimmable: No
  • Lamp lifetime: 30,000 hours
  • Lamp warranty: 1 year
  • Fixture warranty: 3 years
  • Optional accessories: 240V plug adapter
View spec sheet

Customer Reviews

Based on 43 reviews

I bought the older 1.0 version so I am not familiar with the new housing changes for the 2.0 version. But I really like the 1.0 version I have now.

D. Green

Plants LOVE THIS LAMP. My veggie seedlings' growth exploded under this fixture. It puts out a lot of light. I initially had 2/4 of the bulbs inserted incorrectly- and thought it was defective- but the seller quickly helped me troubleshoot the issue.


Well made and excellent for vegetable seedlings. I use a plant light mostly to grow vegetable seedlings to plant in my garden. With previous lights, my seedlings tended to be tall and spindly. This year I bought the 4 lamp fixture with the sun white spectrum. It is far brighter than my previous lights. Seedlings of tomatoes, peppers, and other vegetables were by far the best I've ever grown--fast-growing, compact plants with strong stems and excellent leaf color. The fixture is very solidly constructed and was easy to hang with a chain to adjust the height.


Using the light to grow plant starts. The starts were already up and growing by the time I bought the light. Haven't noticed any fast growth but that could be because I don't have heat under the seedlings and the house isn't overly warm. All appear to be healthy with thick stems.


Used this light for starting garden plants (edible and flowers) indoors. Works amazingly well - my tomatoes have never grown so fast and my peppers have never looked this healthy. Almost too well - the tomatoes outgrew the space very fast! Definitely recommend and intend to get more for next year.

The only complaint I have is with the hanging mechanism - the hanging hook is about 6 inches off the top of the light, meaning for those of us growing on shelves, you have 6 inches of dead space between the light and shelf above from which the light hangs. I managed to rig up something using carabiners on either side to force the light higher, but would be nice if the hanging mechanism were on the light itself as with the old school shop lights.

Jason Budgeon

Really happy with the light and hopefully it will last me along time. Will be starting my seedlings here in another month. Thank you for the great light ðŸ�


Grow vegetables indoors all year from seed to harvest using Active Grow sunlamps. I started out with the Active Grow SunWhite 8 lamp T5 fixture. My tomatoes, peppers, and cucumbers did so well that I decided to convert all my T8 fluorescent fixtures into ballast free to use T8 Active Grow SunWhite bulbs too (T8 review starts at 2:23). I have harvested so many awesome tasting vegetables. My lettuces did phenomenal under these grow lights. The hardiness and texture were way better than when I was using full spectrum fluorescent. Check out my YouTube videos at Amelia's Indoor Garden. To top it off they are located here in the US with excellent customer service. They truly have a passion for their product.

Steve Florey

Good product and delivery time prompt. Very good product

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