SKU: 80749390584
4ft t5 led grow light bulbs

4ft t5 led grow light bulbs Active Grow 25W T5 HO Ballast Bypass 4FT Horticultural Lamp – Vinehydroponics

Sale price$19.42 Regular price$21.58
Save 10%

Pay in installments of $5.39 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Nov 6 - Nov 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4ft t5 led grow light bulbs Active Grow 25W T5 HO Ballast Bypass 4FT Horticultural Lamp – VinehydroponicsActive Grow 25W T5 HO Ballast Bypass 4FT Horticultural Lamp Overview The Active Grow 25W T5 High Output Ballast Bypass 4FT lamp is an LED tube that replaces 54W T5 HO 4FT fluorescent lamps and features lower power consumption, double the PPF efficiency and 100% more effective spectrums for plant growth. All Active Grow T5 HO Ballast Bypass LED tubes work with existing T5 fluorescent light fixtures by bypassing the ballast and wiring the lamp holders

Active Grow 25W T5 HO Ballast Bypass 4FT Horticultural Lamp

 Overview 

The Active Grow 25W T5 High-Output Ballast Bypass 4FT lamp is an LED tube that replaces 54W T5 HO 4FT fluorescent lamps and features lower power consumption, double the PPF efficiency and 100% more effective spectrums for plant growth.

All Active Grow T5 HO Ballast Bypass LED tubes work with existing T5 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 lamps (120-277V) do not flicker, buzz or experience longevity issues. All Active Grow T5 HO Ballast Bypass lamps feature a transparent PC body that protects against water damage and shattering without sacrificing photon output. T5 fixtures require non-shunted lamp holders. Lamps are non-dimmable.

Description

Energy Saving

The Active Grow T5 High-Output 4FT LED Horticultural Lamp uses 50% less energy than fluorescent lamps and operates directly with the existing fixture’s electronic ballast

ClearSync Film Technology

All Active Grow T5 HO lamps now feature ClearSync film technology that improves water-resistance and prevents glass shattering without sacrificing photon output

Sun White / Sun White Pro / Spring Sun / Autumn Sun / Bright White / Red Bloom / Red Bloom Pro Spectrum

Choose between a wide array of spectrums designed specifically for horticulture use or mix and match spectrums to dial in the perfect light combination for your plant and application

Faster Growth Cycles

Speeds up growth rates by 20%

Extra Long Lifetime

Features a 30,000 hour lifetime until when lamps reach 90% of their initial output

Certified Safe

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

Typical Applications

Commercial or home vertical farm racking systems for vegetables, leafy greens, ornamentals, microgreens, cannabis vegetative and cloning stages

Additional information

Shipping Quantity

4-Lamp Pack

Size

4FT

Installation Type

Ballast Bypass

Spectrum

Red Bloom Pro Spectrum

Form Factor

T5

Base Type

G5

Voltage

120-277V

Plant Light Requirement

Low-Medium Light, Medium Light, Medium-High Light, High Light

Plant Type

Cannabis, Flowers, Fruits, Herbs, Leafy Greens, Microgreens, Tissue Culture, Tropical Plants, Vegetables

 

 



Spectral Analysis

T5 HO Direct Conversion 4FT Horticultural Lamp Spectrums

 

Sun White Spectrum

High CRI 95 full-spectrum light accentuates plant colors, making visual inspection easier. Includes additional Red and Far-Red wavelengths to boost photosynthesis rates.

Sun White Pro Spectrum

Professional grade production spectrum formulated to promote healthy vegetative growth, root development, tight internodal spacing and phytochemical production.

Spring Sun Spectrum

Full-spectrum light (CRI 95) formulated to mimic spring sun conditions for promoting plant compactness, tighter internodal spacing and healthy foliage development.

Autumn Sun Spectrum

Full-spectrum light (CRI 95) formulated to mimic natural autumn sun conditions for promoting healthy growth during flowering, budding and fruiting stages.

Bright White Spectrum

Designed for maximum PAR (400-700 nm) efficacy, this full-spectrum light is formulated for high light intensity requirement plants during the vegetative stage.

Red Bloom Spectrum

Far-Red wavelengths boost light absorption, speed up plant growth and combine with Blue wavelengths to promote root development, budding and fruiting.

Red Bloom Pro Spectrum

True full-spectrum light designed to increase plant mass, speed up growth and promote healthy root development, budding and fruiting in purely indoor environments.

 

 

 

 

 

Ballast Compatibility List

Ballast Compatibility List

The T5 HO 4FT LED lamp is compatible with Instant Start and Programmed Start ballasts of T5 HO fluorescent lamp fixtures. Not compatible with daisy-chainable single unit T5 fixtures, for example: Jump Start JST54. Active Grow T5 Horticultural Fixtures (120V) available.

Active-Grow-T5-HO-4FT-Ballast-Compatibility-List


T5 HO LED Vs. T5 HO Fluorescent

Active Grow T5 HO LED Grow Lights Vs. T5 HO Fluorescent Tubes – Energy, Spectrum & PPFD

These tests were taken to compare Active Grow 24W T5 HO 4FT LED Horticultural Lamps and 54W T5 HO 4FT fluorescent lamps in an 8 tube T5 HO fixture. The test focuses on three main areas: Energy Consumption, Spectral Analysis & PPFD Coverage.

Download PDF


T5 HO Fixture Electronic Ballast Replacement Instructions

How to switch out your old T5 HO fixture ballast for a new one that works with Active Grow T5 HO Horticultural Lamps

Why would you change out your T5 HO ballasts?

  1. Ballasts don’t last forever (10-15K hours for a good one) so in order to keep using your existing fixture you can just purchase a new replacement ballast that is cheaper than a new fixture.
  2. In order to use new T5 HO LED lamps that require electronic ballasts to run. To check what ballasts are compatible with Active Grow T5 HO Horticultural Lamps please click the link here.

What you need for the installation:
1: T5 HO Fixture
2: T5 HO Lamps
3: Twist on wire connectors
4: Screwdriver
5: Wire trimmer / cutter
6: New replacement ballast

*NOTICE* NOT ALL T5 HO BALLASTS AND FIXTURES ARE THE SAME SO BEFORE INSTALLATION MAKE SURE YOU REMOVE THE REFLECTOR TO CHECK WHAT TYPE OF BALLASTS WORK WITH YOUR FIXTURE AS BALLASTS ALSO COME IN DIFFERENT SIZES. MOST BALLAST REPLACEMENTS ARE AVAILABLE ON AMAZON FOR LESS MONEY THAN A WHOLE NEW FIXTURE.

*NOTICE* IF YOU HAVE A T5 HO FIXTURE WITH 2 OR MORE BALLASTS INSIDE THE SAME INSTALLATION RULES APPLY.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80749390584

Discover Niche Categories That Outsell 4ft t5 led grow light bulbs

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Linda Woodward
Carnegie, US
★★★★★ 5
One of the best real life adventure stories ever.
Format: Paperback
An absolutely wonderful book. The author takes the reader on an amazing hike on the John Muir Trail. She & her two hiking companions experience vast natural beauty, physical demands, ferocious weather & accidents, but together they get to the trails end atop Mt Whitney. Her descriptions of the hike & the environment bring the reader right along with them. This is truly an amazing adventure tale & also the authors personal memoir. If you love the outdoors, hiking, mountains……or even if you don’t, this is an exciting read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
L
Verified Purchase
Lucy
Houston, US
★★★★★ 3
A natural storyteller
Format: Paperback
Three middle-aged women hike the mighty John Muir Trail, the crown jewel of California that covers over 200 miles of steep and rocky terrain in the Sierra. It was a big deal. The 3-week wilderness trip extended over multiple, high-elevation passes, crossed roaring water and rose to the summit of Mount Whitney, the tallest mountain in the contiguous US at 14, 505 feet. Griffin’s storytelling comes naturally and with ease. This inspirational, follow-your-dreams story is easy to feel surrounded by because of Griffin’s vivid writing. Luscious accounts of landscapes, macro details of the natural world and the knee-knocking, quad-stabbing terrain puts you, the reader, right there. Conversely, the detailed prose is a huge liability in the pacing of this book. Mundane details are redundant as the book slogs on. Long descriptions overtake the read and the focus stays superficial. I would have liked much more character development, and better cadence and dialogue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
P
Verified Purchase
Primo Won
Alexandria, US
★★★★★ 5
My Favorite Camino Read To Date
Format: Kindle
I have read dozens of Camino retellings. This, by Brad Chermside, is my most enjoyed. Brad is an excellent writer with no fear of exposing his insecurities and weaknesses, physical or social. His many metaphors are original and laugh-out-loud funny. He used several interesting writing techniques to keep me in suspense. The most effective being, from the start of the narrative, finding out if when he met the never met mystery woman, who was the catalyst for him beginning his journey, and he would click. It was eventually answered. Highly recommend the book. Hat's off to Mr Chermside on an excellent read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2020
J
Verified Purchase
JoeytheBROfessor
Lexington, US
★★★★★ 4
really enjoyed with good info
Format: Kindle
He included information that I had never heard of even reading many other books. Entertaining. Good stories. Truly enjoyed the read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Camino memories relived
Format: Paperback
I returned from my first Camino trip and I was wanting to stay in touch with everything related to the Camino - the friends I made there, movies on YouTube, and podcasts. It was from the podcast that I learned about Brad. He has been a constant companion to me, as I went through my own Camino 'withdrawl.' Luckily for me, after a couple of weeks from been back from the Camino, I am already able to schedule my next one. Brad's book brought back all the memories, and he put into great narrative and humor all the amazing and magical things that happen during the Camino, including also the challenges, the crying and the laughing. I am very grateful for this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2025

recommand products