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Hydrofarm Agrobrite FLT46 T5 System, 4 Feet, 6 Tube Fluorescent Grow Light, 1 Count (Pack of 1), White

4.4 4.4 out of 5 stars 2,030 ratings

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6 Tubes
4-Feet
Brand Hydrofarm
Light Type Fluorescent
Special Feature Energy Efficient
Wattage 324 watts
Light Color White

About this item

  • Dual On/Off switches allow you to control the amount of lumens as needed
  • Includes 120V 10ft grounded power cord
  • Hangs 3 ways - overhead, vertical, or horizontal
  • Includes 6 fluorescent 6400K, T5 tubes
  • Powder coated steel housing
  • Rated Initial Lumens: 30,000
  • Warranty: 5 yr on ballast, 1 yr on workmanship & material

Customer ratings by feature

Easy to assemble
4.6 4.6
Brightness
4.4 4.4
Heat output
3.8 3.8

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Hydrofarm Agrobrite FLT46 T5 System, 4 Feet, 6 Tube Fluorescent Grow Light, 1 Count (Pack of 1), White
Hydrofarm Agrobrite FLT46 T5 System, 4 Feet, 6 Tube Fluorescent Grow Light, 1 Count (Pack of 1), White
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PriceCurrently unavailable.$37.14$199.00$45.99$35.95$72.95
Delivery
Get it as soon as Sunday, Mar 31
Get it Mar 29 - Apr 1
Get it as soon as Sunday, Mar 31
Get it Mar 29 - Apr 1
Get it Mar 29 - Apr 1
Customer Ratings
Brightness
4.4
4.6
4.3
4.3
Value for money
4.5
3.8
3.1
5.0
Sold By
Amazon.com
Grow Green MI
VIVOSUN
HTGSupply
HTGSupply
bulb shape size
t5 1 2
t5 1 2
t5 1 2
light source wattage
150 watts
54 watts
150 watts
54 watts
54 watts
108 watts
light type
Fluorescent
Fluorescent
Fluorescent
Fluorescent
Fluorescent
Fluorescent
light color
White
White
White
Cool White
Blue
Daylight White
finish type
Powder Coated
Powder Coated
Blue
Polished
color rendering index
6400
80
80
voltage
120 volts
120 volts
120 volts
120 volts of alternating current
120 volts
color temperature
6400 kelvin
6400 kelvin
6400 kelvin
6500 kelvin
6400 kelvin
6400 kelvin
weight
24.23 pounds
2.6 pounds
28 pounds
1.23 kilograms

From the manufacturer


Hydrofarm - Tools for growing

Hydrofarm is the nation’s oldest wholesaler and leading manufacturer of hydroponics equipment and high-intensity grow lights.

Our products incorporate only premium quality components, and our professional-grade hydroponics and UL-listed lighting fixtures give you years of dependable service.

Agrobrite T5 Fixture with Lamps

Hydrofarm’s newest T5 system delivers performance, flexibility, and high lumen output in any growing environment. These systems allow you to choose multiple hanging configurations to meet your garden’s design. They combine premium grade specular aluminum with energy-efficient/high-output T5 tubes and put out double the light energy of normal fluorescent systems.

  • Seven sizes available, from 2–12 tubes
  • Daisy chainable—run multiple fixtures from a single outlet
  • Rated up to 18,800 lumens
  • Low profile, powder coated steel housing
  • Hangs 3 ways—overhead, vertical, or horizontal
  • Includes 10' grounded power cord and 6400K fluorescent tubes

Performance, flexibility, and high lumen output ... in any growing environment

High output light—great price

Super versatile installation options

What’s in the box? Everything.

High output light—great price

Agrobrite T5 replacement tubes offer HO light at a great price. Full daylight 6400K spectrum, rated for 20,000 hours of life, and compatible with all Hydrofarm T5 fixtures. Available in volume 20-packs, too.

Super versatile installation options

Agrobrite T5 fixture can be installed three ways—vertical, horizontal, or overhead—so you get the maximum lumens reaching your plants at all times.

What’s in the box? Everything.

Hydrofarm’s Agrobrite T5 Fixture comes with everything you need, all packaged securely in a cardboard box with protective foam insulation.

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

Feedback

Hydrofarm

Hydrofarm Agrobrite FLT46 T5 System, 4 Feet, 6 Tube Fluorescent Grow Light, 1 Count (Pack of 1), White


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Product guides and documents

Product Description

Hydrofarms new Designer T5 System delivers performance, flexibility, and high lumen output in any growing environment. These systems allow you to choose multiple hanging configurations to meet your gardens design. They combine German specular aluminum with energy-efficient/high-output T5 bulbs and put out double the light energy of normal fluorescent systems. System includes 6 fluorescent 6400K, T5 tubes

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,030 global ratings

Customers say

Customers like the growth, heat, and ease of installation of the light fixture. For example, they mention it makes plants grow well, keeps them warm, and that the setup was a breeze. They're also satisfied with performance, size, and quality. That said, some complain about the bulbs breaking. Opinions are mixed on weight.

AI-generated from the text of customer reviews

683 customers mention569 positive114 negative

Customers like the quality of the light fixture. For example, they say it's solid, well constructed, and provides 100% light coverage. Some mention that the quality is okay. That said, most are happy with their purchase and recommend it to others.

"...Agrobrite FLT22 offers tremendous value, is still economical and robust enough to allow for further expansions...." Read more

"...The light is almost the same size as the Double Bio-Dome and provides 100% light coverage necessary for young plants to thrive...." Read more

"...My tank is 31" deep and the light is strong enough for the Zoanthids and Palythoas on the bottom of my tank, as well as, the LPS on top...." Read more

"...Overall, for the price, this is a good light fixture, but, as mentioned, I don't like the open top design...." Read more

590 customers mention510 positive80 negative

Customers like the performance of the light fixture. For example, they say it's a good functional product, the included bulbs work great, and it works perfectly right out of the box. Some say it works well in keeping plants at just the right temperature. Overall, most are satisfied with the performance and recommend it to others.

"...could be that for the price point, the Agrobrite FLT22 offers tremendous value, is still economical and robust enough to allow for further..." Read more

"...Overall, I love this unit! All of my corals are happy and the price was great...." Read more

"...light to start plants that will be move outdoors, the price factor on this light is attractive and it works as well as the more expensive..." Read more

"...Fantastic results!..." Read more

190 customers mention184 positive6 negative

Customers are satisfied with the growth of their plants under the light. They mention that it makes their plants grow well, lush, and thrive all winter. Some say that the lights are great for germinating and growing crops from seed. Overall, customers are happy with the product and recommend it to others.

"...Bio Dome is an extraordinary seed-starting system that allows your plants to grow quite large without root binding problems found in other tray-type..." Read more

"...Fantastic results!It works and has the power to give seedlings a good start without stretching, when used a half dozen inches away from new..." Read more

"Plug and grow. Good for seedlings and cuttings. Enables you to get good head start on spring garden." Read more

"...I found that this thing makes plants grow so well that the quickly over grow the effective lighting zone of this 2' lamp...." Read more

102 customers mention72 positive30 negative

Customers like the heat produced by the light fixture. They mention that the lights are bright and put off some heat, but not enough to burn anyone. The LED tubes produce less heat and will not burn plants that touch them. On the flip side, the cooling is simpler, plants can be located closer, and they have not seen any signs of heat stress as of yet.

"...be no match for a Metal Halide system, but on the flip side, the cooling is simpler, plants can be located closer to the source, energy usage issues..." Read more

"...The LED tubes produce less heat and will not burn plants that touch them...." Read more

"...1-2 ft. is fine and my plants are not spindly at all. It does emit heat even for a fluorescent, so the distance and fan compensate most of your heat..." Read more

"...Overall, the quality is okay and the lights are bright and put off some heat but not enough to burn anyone...." Read more

85 customers mention85 positive0 negative

Customers find the installation of the light fixture to be easy. They mention that the bulbs were easily installed and everything worked the first time that they threw it. They say the light itself comes fully assembled, except for the tubes, which are carefully placed.

"...It's held up wonderfully and installed nicely. The light is extremely bright- which works good for it's intended purpose...." Read more

"...I have racheted it up just a little bit one time so far. Just so easy to do...." Read more

"...The frame and reflectors are fitted well. Lamps were a breeze to install. I took it all apart to see what ballasts are in there...." Read more

"...It was an easy process to hang the lights from the ceiling and adjust the height...." Read more

69 customers mention59 positive10 negative

Customers like the size of the light fixture. For example, they say it's lightweight, fits perfectly in their grow tent, and is easy to store in a shelf arrangement. Customers also mention that the light provides for short compact internodal spacing, making it ideal for small enclosed areas.

"...The coverage is small, but effective...." Read more

"I'm really pleased with this light unit. It's compact, just big enough for a tray of seeds...." Read more

"...-Reflector is one piece and tucks into the frame - helps prevent cuts from the thin metal like other lights have that are multiple pieces that don’t..." Read more

"This unit is solid. The frame and reflectors are fitted well. Lamps were a breeze to install...." Read more

40 customers mention27 positive13 negative

Customers are mixed about the weight of the light fixture. Some mention that it's relatively lightweight for its size, while others say that it is slightly heavy.

"...That works well for us. Once again it also makes it easy to move around.Overall this light has worked great so far...." Read more

"...The unit is solid so that it doesn't feel fragile but it's not to heavy to pick up and move around...." Read more

"...Sturdy light, solidly made. Slightly heavy, but i judge that to be a measure of it's quality...." Read more

"...Not only is the system lightweight, perfect size, with awesome reflectors, but Hydrofarm customer service is top notch, a rare and wonderful..." Read more

198 customers mention33 positive165 negative

Customers are dissatisfied with the bulbs included in the light fixture. They mention that they arrived damaged, with two bulbs broken and two reflectors bent. Some say that the bulbs have not last as long and have suffered a failure on two bulbs. They also mention that the included bulbs are cheap.

"...Second, the unit will turn off 3 bulbs when the fixture gets too hot...." Read more

"...One has burned out entirely (very low level of light coming out) and one is significantly brighter than the rest--meaning the others have lost a lot..." Read more

"...routed by UPS and when it was delivered on Wednesday it had one broken bulb and the reflector was slightly bent...." Read more

"...Packaging could be much better because I received a broken light bulb in the package...." Read more

A good fixture as compared to others I have. Don't care for the open top design.
4 Stars
A good fixture as compared to others I have. Don't care for the open top design.
I have two 20' x 15' grow rooms in my basement where I have been growing the majority of our veggies and herbs for the last 5 years. One room has 7 large LED fixtures for the larger floor plants, and the other room contains 5 4' - 5' shelving units that I use lights similar to these. The shelving units are used to grow seedlings and plants that do not exceed 30". I use an Apogee PAR meter to determine lighting height for some of the plants, and run my lights for 14 hours per day. On the shelves, I use a number of 4, 6, and 8 tube lights similar to this one.The lights on my shelves all came with T5 fluorescent tubes that I switched out for T5 LED tubes. The LED tubes for this fixture use 11 Watts of power vs. the 24 Watts used by the fluorescent tubes. So, the LED tubes use less than half of the electricity required for the fluorescent tubes. The LED tubes produce less heat and will not burn plants that touch them. Using my Apogee PAR meter, the LED tubes produce a reading of 450 PAR at 4-6 inches from the plant. For new seedlings, the light should be higher as seedlings need only 250-300 PAR for compact growth.Although this Hydrofarm Agrobrite fixture works as well as the other tube fixture I have, I am not fond of the open top design. The other fixtures I have are covered on the top and are easy to clean dust, soil, or water that may fall on top of them in a multi-shelf configuration when installed on a lower shelf. I installed this light on a top shelf, so won't have to contend with water spillage or soil, but I don't look forward to cleaning dust out of it. The design is basically a rectangular box which is not quite as aesthetic as the designs of other fixtures I have. The on/off switch is on one end of the fixture which may be more or less convenient depending on your configuration. For all of my other fixtures, the switch is on the side. I prefer the side switch for my configuration, but the switch on the side of the cord may work fine for you.Another thing I don't like about this fixture is that the hanging apparatus are solid triangular pieces connected to the top of the fixture. These are what the fixture hangs from. The other fixtures I have use flexible covered wire to hang the fixture. The problem with the solid hanger is that you can not raise the fixture so that is less than 7-8 inches from the shelf it is hanging on. Fixtures with the flexible hanger can be raised to be much closer to the shelf above since the hanger can be pulled through the shelf and wrapped around the bars on the shelf. This may not be a problem for you depending the the height of your plants.Overall, for the price, this is a good light fixture, but, as mentioned, I don't like the open top design. So, I would not buy another fixture of this brand. If you are new to growing indoors or need a light to start plants that will be move outdoors, the price factor on this light is attractive and it works as well as the more expensive fixtures.UPDATE 7/06/23:To solve the problem of the triangular hanging piece, I removed this piece which is just hooked in through a hole in the top to the fixture. I used S-hooks that fit into these holes, and connected the S-hooks at each end with a small piece of chain. I used a smaller S-hook to connect the center of the chain to another small chain that is hung from a bar of my shelving unit. This makes raising and lower the light very easy, and the light can be hung much closer to the shelf above it. I have added a couple of pictures that hopefully, depicts what I have described.I hope this review was helpful for you.
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Top reviews from the United States

Reviewed in the United States on November 5, 2016
Pattern Name: 2 TubesStyle: 2-FeetVerified Purchase
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5.0 out of 5 stars Good competition to more expensive systems. Good value for the price point.
Reviewed in the United States on November 5, 2016
I am setting up a mini grow station in my basement. I plan to grow perennials from seed during the winter with the objective of transplanting them to my garden next Spring. As a newbie to the mysteries of indoor gardening and gardening in general, I also have been baffled by the incredible variety of systems and possibilities, with such a huge range in price and quality. I decided on the Agrobrite after reviewing some possibilities, including LEDs. So after a period of research through the internet, trying to find some technical information, here is what I have found so far.
So what I did was to gather the information provided by Hydrofarm and contrast it with some calculations based on my own testing. I downloaded a light meter application to my iPhone, just the kind that yields reading in footcandles and lux. I took some measurements in footcandles (fc) and converted them to lux (CAVEAT: take this measurements with a grain of salt, it is expected that the sensor in the iPhone camera is not as accurate and precise as even the least decent of spectrometers---nevertheless, I used them to guide my analysis). Then using published tables (easily found on the web) I converted lux (which is a photometric unit) to a radiometric unit and then into PAR (Photosynthetically Available Radiation---which as everybody knows, is the part of the spectrum from 400 to 700 nanometers that plant use during what is called vegetative growth).
The Agrobrite FLT22 [ASIN:B0031CA3OM Agrobrite T5, FLT22, 2 Foot, 2-Tube Fixture with Included Fluorescent Grow Lights] (which I assume is named after its ballast model and size) portrays two T5 HO bulbs at 6400K, 24 watts each, for a total of 48 watts, both bulbs yielding “up to 4000 lumens” each, I interpret. [the wattage can be found multiplying 120 volts by 0.4 amps, as specified on the box]. Based on this, the pair of T5s in the Agrobrite should be capable of producing up 10800 lm (just using the upper-bound in the range of luminous efficacy for a LED lamp). Hydrofarm, perhaps wisely, put a statement of “up to 4000 lumens”, meaning that for the pair, it should output 8000 lumens. The discrepancy puts their own claim at 74% efficiency [the lower limit of luminous efficacy should be explored too to try to fit their rating].
I obtained measurements of 1500 footcandles per tube for a total of 3000 footcandles for both. Using the surface area of my setup: 1.63 square foot, I arrived to a figure around 9700 lm, a slight 22% above Hydrofarm's upper value. Of course, the result is easily attributable to the amount of error introduced by reading irradiance with an iPhone and a cheap application as processing software of choice. I suspect that a combination of sensor error, reflective set-up and liberal use of assumptions put the readings so high, but at the same time my gut tells me that they might not be so far below either.
Using these values, I computed 33 PAR watts, shy of 200 mu_mol/m^2.s and a range for PPFD: 869<PPFD<1868. (Again, take into account that this is for the small surface area of 1.63square ft). As reference, a 1000 watt UltraSun Metal Halide lamp, situated 24 in. above plants, claims measured values with a PAR meter of 569-574 mu_mol/m^2.s, peaking at 600 mu_mol/m^2.s. The limit of PAR that plants can handle is around 1500 mu_mol/m^2.s. A good value to achieve could be 500 mu_mol/m^2.s. Obviously, 2 fluorescent tubes seem to be no match for a Metal Halide system, but on the flip side, the cooling is simpler, plants can be located closer to the source, energy usage issues are points to be considered.
One cautiously optimistic conclusion could be that for the price point, the Agrobrite FLT22 offers tremendous value, is still economical and robust enough to allow for further expansions.
I have under the lights for 13 hrs daily, some sprouts of Hollihock, Salvia, Anisse Hyssop and Ratibida that I was hardening outside in early Fall. Very soon I will be able to tell whether the set up is doing its job.
I will post new updates as they occur.
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25 people found this helpful
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Reviewed in the United States on January 2, 2014
Pattern Name: 4 TubesStyle: 2-FeetVerified Purchase
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SMOKEY
5.0 out of 5 stars Best VEG Light
Reviewed in Canada on November 8, 2023
Pattern Name: 4 TubesStyle: 2-FeetVerified Purchase
Gonzalo
5.0 out of 5 stars Las usó para un acuario marino
Reviewed in Mexico on April 18, 2020
Pattern Name: 4 TubesStyle: 2-FeetVerified Purchase
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Sean O
5.0 out of 5 stars Amazing build quality
Reviewed in Canada on March 28, 2018
Pattern Name: 4 TubesStyle: 4-FeetVerified Purchase
Mark
5.0 out of 5 stars Good
Reviewed in the United Kingdom on April 5, 2019
Pattern Name: 2 TubesStyle: 2-FeetVerified Purchase
Amazon Customer
5.0 out of 5 stars good quality. Love the lights and so do my ...
Reviewed in Canada on April 7, 2017
Pattern Name: 6 TubesStyle: 4-FeetVerified Purchase