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Active Grow's mission is to help the world transition to sustainable food and medicine production by building the horticultural solutions of the future.
Grow Lights for All Types of Growers, Plant Types & ApplicationsWhether you're an experienced green thumb or a novice grower, Active Grow has you covered. We offer the largest selection of LED grow lights and lamps for any indoor growing application with thoughtfully designed spectrums for specific plant types and growth stages.
4-Pack T5 HO Ballast Bypass 4FT LED Grow LampOur high output T5 LED grow lamps produce tighter internodal spacing & fuller, heartier plants all while saving you energy.
What can I grow?
Best for microgreens, leafy greens, herbs, flowers, vegetables, tropical plants and carnivorous plants.
What's included?
4x 25W T5 HO Ballast Bypass 4FT LED Grow Lamps
1x Lamp installation guide
Can these T5 LED grow lamps be used with a fluorescent ballast?
No! These single-ended T5 LED grow lamps require line voltage (120-277V) powered to the end cap marked with L N and cannot be used with a fluorescent ballast of any kind. Refer to the installation guide and video in the product image gallery.
How do I install these T5 LED grow lamps in an existing T5 fluorescent light fixture?
Remove the existing ballast and wire the lamp holders (requires non-shunted) to a single end. Insert the T5 lamp ends marked with L N into the wired lamp holders. Refer to the installation guide and video in the product image gallery for details.
Where do I find the product specifications?
Refer to the product comparison chart below or the specification sheet in the product image gallery for detailed specifications.
We use the latest independent research from the field to continually fine tune our products based on data points that matter most to growers.
Grower Community FirstWhether you are a horticultural research institution or a home grower, we use all of our customer feedback to help improve your growing experience.
Sustainably FocusedFor every sale we donate to 1% for the Planet programs that promote sustainable agriculture.
Locally Based in Seattle, WAWe work directly with local growers to develop the next generation of energy efficient and long-lasting alternatives to traditional grow lights.
Compare Active Grow Products Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 6 4.4 out of 5 stars 99 4.2 out of 5 stars 40 4.8 out of 5 stars 45 4.1 out of 5 stars 59 3.9 out of 5 stars 69 2.2 out of 5 stars 2 Price $129.00$129.00 — — — — $119.00$119.00 — Model number AG/25T5HOBB/4FT/WS/4 AG/T5HO4FIX/4FT/WS AG/22STRIP/4FT/WS/2 AG/40PFIX/4FT/WS AG/24T5HO/4FT/WS/4 AG/22T8BB/4FT/WS/4 AG/15PAR38/FL50/PS Power 25W 100W (4x25W LED grow bulbs) 22W 38W 24W 22W 15W Input voltage 120-277V 50-60Hz 120-277V 50-60Hz 120-277V 50-60Hz 120-277V 50-60Hz 120V 50-60Hz 120-277V 50-60Hz 120V 50-60Hz Requires ballast No No No No Yes (refer to list in images) No No PPF output (280-800 nm) 57 µmol/s 228 µmol/s 45 µmol/s 75 µmol/s 54 µmol/s 44 µmol/s 24 µmol/s Efficacy (280-800 nm) 2.28 µmol/J 2.28 µmol/J 2.05 µmol/J 1.97 µmol/J 1.93 µmol/J 2.00 µmol/J 1.60 µmol/J CRI 95 95 95 95 95 95 96 Daisy chain NA Yes (up to 3@120V) Yes (up to 20@120V) Yes (up to 12@120V) NA NA NA Dimensions (l x w x h) 45.63"x0.75"x0.75" 46.5"x12.5"x1.7" 47.24"x2.76"x1.77" 47.24"x5.08"x1.92" 45.63"x0.67"x0.67" 47"x1.02"x1.02" 4.75"x5.15" Weight 0.40 lbs (181 g) 5.6 lbs (2.5 kg) 1.82 lbs (827 g) 3.52 lbs (1.6 kg) 0.34 lbs (154 g) 0.40 lbs (181 g) 0.36 lbs (164 g) Lifetime 30,000 hrs 30,000 hrs (lamps) 40,000 hrs 40,000 hrs 30,000 hrs 30,000 hrs 30,000 hrs Other spectrum/size options Yes (check product family) Yes (check product family) Yes (check product family) Yes (check product family) Yes (check product family) Yes (check product family) No ABOUT USWe’re dedicated to bringing you great deals on quality products. From home décor and garden essentials to tools, hardware, and pet accessories, our store has something for everyone — all at prices you’ll love.
SHIPPINGWe ship all orders directly from the USA for fast, reliable delivery. Most items ship within 1 business day and include free shipping to the lower 48 states.
For international orders, we use eBay’s Global Shipping Program — simply continue checkout to see costs, duties, and taxes for your country.
FREE RETURNSWe offer a 30-Day Return Policy on items which you are not completely satisfied with. You have the option for a full-refund or an exchange of the item.
CUSTOMER SATISFACTIONWe do everything we can to ensure every customer is 100% satisfied. If something isn’t right, just send us a message — we’ll make it right quickly!