SKU: 38592959064
4 ft grow light bulbs

4 ft grow light bulbs T5 HO 2.0 4FT 4 Lamp LED Grow Light (216W Eqv.) – Red Bloom Pro Spectrum

Sale price$20.18 Regular price$22.42
Save 10%

Pay in installments of $5.61 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4 ft grow light bulbs T5 HO 2.0 4FT 4 Lamp LED Grow Light (216W Eqv.) – Red Bloom Pro SpectrumActive Grow T5 HO 2. 0 4FT 4 Lamp LED Grow Light Red Bloom Pro Spectrum Struggling to achieve the flower density and fruit yields your plants are capable of? Standard lighting often lacks the specific red wavelengths required to trigger robust reproductive growth. The Active Grow T5 HO 2. 0 4FT 4 Lamp LED Grow Light with Red Bloom Pro Spectrum is the professional solution, engineered specifically for flowering and fruiting stages to promote maximum

Active Grow T5 HO 2.0 4FT 4 Lamp LED Grow Light - Red Bloom Pro Spectrum

Struggling to achieve the flower density and fruit yields your plants are capable of? Standard lighting often lacks the specific red wavelengths required to trigger robust reproductive growth. The Active Grow T5 HO 2.0 4FT 4 Lamp LED Grow Light with Red Bloom Pro Spectrum is the professional solution, engineered specifically for flowering and fruiting stages to promote maximum bloom development and enhanced harvest quality.

This high-performance 100-watt LED system is a direct, energy-efficient replacement for traditional 216W fluorescent fixtures, slashing energy consumption by 54% while providing superior light quality. Unlike conventional T5 setups, this fixture features a ballast-free design, eliminating the common issues of buzzing, flickering, and expensive ballast failures. Growers looking for full-cycle performance might also consider the Active Grow T5 HO 2.0 Sun White Spectrum for the vegetative phase, or the 8-lamp version for larger canopy coverage.

The specialized Red Bloom Pro Spectrum is formulated with targeted red wavelengths that stimulate phytochrome responses, essential for transitioning plants into their reproductive phases. This results in stronger budding sites, increased essential oil production, and denser flowers. Built with a lightweight 5.6-pound polycarbonate body and dual on-off switches, this system allows for precise lighting management in any commercial or home grow environment. For smaller supplemental needs, the Active Grow Red Bloom 2FT strips offer similar specialized spectrum technology in a more compact form factor.

What's Included

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

Features

🌸
Flowering-Optimized

Targeted red wavelengths trigger optimal flowering responses and increased budding sites.

Energy Efficient

100W LED system replaces 216W fluorescent fixtures with over 50% energy savings.

🚫
Ballast-Free Design

Eliminates flickering, buzzing, and the need for costly ballast replacements.

🛠️
Dual Switch Control

Independent switches allow for precise control between vegetative and flowering stages.

📦
Lightweight Build

Innovative polycarbonate construction is thin, durable, and weighs only 5.6 lbs.

🔗
Daisy Chainable

Connect up to 6 units on a single 277V circuit for seamless commercial expansion.

Specifications

Specification Value
Model Number AG/T5HO4FIX/4FT/PR
Power Consumption 100 watts
Input Voltage 120-277V 50-60Hz
PPF Output (400-700nm) 180 µmol/s
PBAR Output (280-800nm) 200 µmol/s
PPF Efficacy 1.80 µmol/J
CRI 70 (typical)
Dimensions (L x W x H) 46.5" x 12.5" x 1.7"
Weight 5.6 lbs
Daisy Chain Capability Max 3@120V / 4@208V / 5@240V / 6@277V
Certifications ETL Listed
Lamp Lifetime 30,000 hours

Spectrum

The Active Grow Red Bloom Pro Spectrum is a flowering-optimized light recipe featuring elevated far-red and deep red wavelengths specifically formulated to trigger phytochrome responses that initiate and sustain the reproductive phase. This targeted spectral approach stimulates stronger budding sites, increases essential oil and terpene production, and promotes denser flower development — delivering 200 µmol/s PBAR output at just 100 watts for an efficient, high-impact bloom solution.

Support & Manuals

Warranty

The Active Grow T5 HO 2.0 LED Grow Light system is backed by a comprehensive 3-year warranty covering both the fixture and the LED lamps, ensuring reliable performance for your commercial or home cultivation projects.

FAQs

What is the Red Bloom Pro Spectrum best for?+

The Red Bloom Pro Spectrum is specifically designed for the flowering and fruiting stages of plant growth. Its enhanced red wavelengths stimulate phytochrome responses that promote denser budding, increased essential oil production, and higher overall yields.

Does this fixture require a ballast?+

No, this is a ballast-free system. It uses direct bypass LED lamps, which means you won't have to deal with the buzzing, flickering, or energy loss associated with traditional fluorescent ballasts.

How many units can I daisy chain together?+

You can connect up to 3 units on a standard 120V circuit. If you are using higher voltage commercial circuits, you can daisy chain up to 6 units on a 277V circuit.

What is the recommended hanging height?+

For flowering plants with high light requirements, we recommend positioning the light 12 inches above the canopy for a 2'x4' coverage area. For low-light plants, it can be hung at 24 inches for a 3'x4' area.

Can I use this light for the entire grow cycle?+

While this light is optimized for flowering, the dual switch control allows you to manage light levels for different stages. However, for the best vegetative results, many growers supplement with a Sun White spectrum light during the early stages.

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: 38592959064

Discover Niche Categories That Outsell 4 ft grow light bulbs

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 4
Nice looking, quality is iffy 🤷🏻‍♀️
Size: 7, Color: Black Leather
Love the look of these, nice and comfortable, or so I thought. I wore them for the first time yesterday and they rubbed the top of my foot. I hate that they are lined in a fabric that causes friction. I kept them because I loved the look of them, but, in all honesty I think they are expensive for the quality. My right shoe has scrub marks on the leather :-(
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
J
Verified Purchase
Jen Cardenas
Bozeman, US
★★★★★ 5
Great Shoe
Size: 7, Color: Rosette
True to size. I wear a 7 in regular Hey Dude's and these platform ship ons are a 7 and git like a glove. Super comfy. Pink suede color is gorgeous! Great Purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
K
Verified Purchase
Kim Lange
Grantham, US
★★★★★ 5
NICE QUALITY
super comfortable and looks just like the picture. I usually wear 8 1/2, but since Hey Dudes don't have 1/2 sizes I purchased an 8, they fit perfect and still feel a little roomy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
M
Verified Purchase
Misty Pruitt
Boise, US
★★★★★ 5
Too cute!!! Comfortable too!
Size: 7, Color: Rosette, Size: 7, Color: Rosette
I was so worried about the platform on this shoes, but let me tell you, I love them, so comfortable and this pink color is too cute! Easy to find shirts to match! The price was well worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
J
Verified Purchase
John V.
Bozeman, US
★★★★★ 5
Quality and balance
Color: Grey, Color: Grey
If you are reading this review and looking at this watch, you are most likely someone that appreciates mechanical movements and the rich history behind them and the brands that are known for making quality watches which have a beautiful balance between a timepiece and a piece of jewelry. For me, I have multiple sport watches with many complications and some that cost as much or even more than this Tissot Le Locle but anyone that wears a watch and appreciates the heritage of a mechanical movement must own this watch. The jewelry part of this watch is amazing, not loud, just a refined look making a statement that this is not something cheap. The picture does not do it justice. The dial has an amazing "personality" where under low lighting it looks silver and under normal lighting soft white making a beautiful contrast between the black hands and black roman numerals only to surprise you again when you change the viewing angle and the black numerals change to silver. The black hands will give you no trouble reading the time at a glance and 39mm will prove to be the perfect size for any wrist. The movement is high quality as expected to be in a Tissot and will be working for many years to come so you can pass this watch down to another generation. As a matter of fact, last year my mother who is 78 found the Tissot watch she had in her youth that was in a box with old family watches and she had not worn for decades. She gave the crown a few spins and the watch came back to life keeping accurate time. This is what you can expect from a Tissot movement. So if you are buying this for your self, you are in the right place, if you are buying it for someone else, make sure they can appreciate what this is otherwise you are better off spending your money elsewhere. You should also consider getting quality quick release black and brown leather straps with a classic buckle to make this watch suitable for any attire.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026

recommand products