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Jump Start JSV4 4' T5 Grow Light System (Stand, Fixture & Tube)

4.2 4.2 out of 5 stars 1,376 ratings

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4'
T5 Grow Light System
Style T5 Grow Light System
Brand Hydrofarm
Color White
Special Feature Full Spectrum
Light Source Type Fluorescent

About this item

  • Ideal for seedlings, cuttings, flowers and house plants
  • Grow seedlings faster with 15-20% more lumens
  • Simple toggle clamp for easy lamp height adjustment
  • Super easy assembly
  • Internal reflective finish directs more light to plants
  • CE Certified, 48" interior width, Compatible with Hydrofarm's FLT, FLV, and FLP tubes

Customer ratings by feature

Easy to assemble
4.6 4.6
Brightness
4.5 4.5

Product information

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Jump Start JSV4 4' T5 Grow Light System (Stand, Fixture & Tube)


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Product Description

"Jump Start JSV T5 Grow Light System from Hydrofarm The Jump Start maximizes your germination success and is great for seedlings, cuttings, veggies, flowers, herbs, greens, and more. Features a high output T5 full daylight spectrum bulb for faster growth. The cool running design lets you position the light closer for healthier, hardier plants. Grow seedlings faster with 15-20% more lumens. Just pull the cord up or down and slide the locking mechanism to adjust. Simple toggle clamp for easy lamp height adjustment keeps light close to plants. Easy to adjust fixture height Highly efficient T5 bulb and super reflective internal finish. Maximize plant growth – Simple toggle clamp for easy lamp height adjustment keeps light close to plants Save time & money – Highly efficient T5 bulb (with more lumens per watt) and super reflective internal finish mean more light for your plants and less stress on your budget Easy to use – Assembles in minutes Compatible with Hydrofarm’s FLT, FLV, and FLP tubes"

Customer reviews

4.2 out of 5 stars
4.2 out of 5
1,376 global ratings

Customers say

Customers like the ease of assembly of the light. They mention that it's very easy to put together and no tools are needed. They appreciate the quality of the product, saying that it makes for great starts in the garden. Customers are also happy with the performance, saying it works well and is effective. They like the brightness, saying the light spreads out quite well. Customers also appreciate value, and adjustability. However, some customers are mixed on sturdiness and size.

AI-generated from the text of customer reviews

404 customers mention375 positive29 negative

Customers find the hydroponic system very easy to assemble. They say it takes under five minutes to put together, with no tools needed. Customers also mention that it's convenient and easy to move around.

"...The item I received was uber-simple to put together, no tools needed. It is quite sturdy - not even a little bit flimsy or rickety...." Read more

"Great little stand. Easy, 'no tools required' assembly, took longer to unpack than assemble. Sturdy enough...." Read more

"...I found this made it super easy to slide them into place. Also made it easy when I screwed up and put one in backwards. D'Oh!..." Read more

"...of the highest-rated grow lights, uses only 54W an hour, and the set-up is simple...." Read more

330 customers mention311 positive19 negative

Customers are happy with the quality of the product. They say it's easy to set up and all their seedlings are happy. They also say it makes for great starts in the garden and helps turn their seeds into beautiful plants. Customers also mention that the T5 seems to be great for vegetative stages and has had great success with tomatoes, peppers, cucumbers, and others, all from seeds.

"Great little stand. Easy, 'no tools required' assembly, took longer to unpack than assemble. Sturdy enough...." Read more

"...I put them under this light and BAM! in less than 24 hours all my seeds had germinated and now I have fantastic looking cukes and tomatoes!..." Read more

"...Most of my seeds have germinated, and I currently have thriving seedlings of mesclun lettuce, spinach, cilantro, basil and cherry tomatoes...." Read more

"...Despite all of this, the product itself is simple and clever and I do not want to discourage anyone from considering the Hydrofarm JSV4 4-foot grow..." Read more

320 customers mention259 positive61 negative

Customers like the performance of the light. They say it's simple, effective, and works well. Some say the stand works well, is easy to move, and provides good light. Some customers have had the light for six or seven years and are still satisfied. Overall, most are happy with the performance and recommend it to others.

"...added the 2' extension and that makes it less stable but works great for my little garden...." Read more

"...This light works great for new plants! TIP: Ignore the directions that say to only have the light on 8 hours a day...." Read more

"...But all the parts fit together and the lamp is working...." Read more

"...Plugged it in and it works great. Not only that, but the light output is very bright for such a small tube. A+...." Read more

223 customers mention161 positive62 negative

Customers like the brightness of the grow light. They say it provides light in winter to 5 Earthboxes full of vegetables. They also say it's reasonable, functional, and easy to use. Customers also mention that the interior of the ballast is highly reflective, assuring the most light possible is directed at their plants.

"...The Hydrofarm has one of the highest-rated grow lights, uses only 54W an hour, and the set-up is simple...." Read more

"...Plugged it in and it works great. Not only that, but the light output is very bright for such a small tube. A+...." Read more

"...I replaced the bulbs and still no light. As I suspected it was the ballast inside the lamp...." Read more

"...The single T5 still provides a good amount of light, but two tubes would obviously be better than one...." Read more

199 customers mention145 positive54 negative

Customers like the value of the outdoor living product. They mention that the bulbs are affordable, it's a great investment, and has saved them bundles of money. Overall, customers are satisfied with the quality and design of the light.

"...what it would cost to rig up my own, I think the Hydrofarm is very fairly priced...." Read more

"...Light bulb is rated for 54 watts so its very cheap to run compared to other grow lights .Con's..." Read more

"...A small plastic device is used to secure the cords, it works, feels a bit cheap but it does work...." Read more

"...a few days ago and am very pleased with the quality and the overall design for the price...." Read more

118 customers mention118 positive0 negative

Customers are satisfied with the adjustability of the light. They mention that it is easy to adjust the height of the product. They appreciate the up and down pulley action, which allows them to adjust it up or down. Customers also appreciate the simple yet effective rope-based fixture adjustment system.

"...The light lowers and raises very easily...." Read more

"...The adjustable light is easy to raise and lower for the growing plants or just to get in and water or move your plants around...." Read more

"...Once your vegetable or flower start to sprout it is easy to keep the light adjusted to proper level...." Read more

"...The on/off switch is on the power cord. The height adjustment is much simpler using a friction/slip knob on a thicker cord...." Read more

294 customers mention180 positive114 negative

Customers are mixed about the sturdiness of the outdoor living product. Some mention that it's completely sturdy in construction, while others say that it is a little bit wobbly and the legs on the stand are flimsy.

"...It is quite sturdy - not even a little bit flimsy or rickety. The light lowers and raises very easily...." Read more

"...There is a slight left-right wobble and, in this direction, the frame is at its weakest...." Read more

"...get it locked into place if the mechanism does fail Overall the quality is good and it looks good. It is only one bulb so light output is narrow...." Read more

"...In spite of complaints from some, I was impressed by how sturdy the frame appears...." Read more

119 customers mention69 positive50 negative

Customers are mixed about the size of the grow light. Some mention that it fits fine there and only occasionally gets in the way when they have to get, while others say that it takes up too much space in the garage. The 4 foot width allows to you place 2 standard sized plants. However, some customers say that the fixture is very narrow and only illuminates about 3-5 inches of space. The sufficient lit area only fits half of a 6 X 12 cells seed tray.

"...Pull cord works good and locks into place quite easily...." Read more

"...On one of the two strings, the aluminum crimp was too large for the string and it didn't hold that end of the lamp for more than about 10 seconds..." Read more

"...They do fit well enough that the stand is stable, I needed a rubber mallet to get a couple of the tubes onto the connectors, but even still there..." Read more

"...Its sufficient lit area only fits half of my 6 X 12 cells seed tray ( I turn the try around every day to let every seedling get even light )...." Read more

Great product!
5 Stars
Great product!
Apparently, there are many similar products being sent under this same item no. The item I received was uber-simple to put together, no tools needed. It is quite sturdy - not even a little bit flimsy or rickety. The light lowers and raises very easily.The reason I bought it is that I just can't grow anything outside and would very much like to grow my own lettuces and houseplants indoors hydroponically. Eventually I'd like to grow tomatoes and peppers, too, but I think you have to buy a super-expensive light for those. I'm just looking to start this operation now, so I thought I'd try one of the cheaper lights first. I'll update this review in a couple months to let you know if it worked with this light fixture, and add pics if it did.FIRST UPDATE (Oct 25 2013): I planted lots of lettuces and a few other things hydroponically in 3 5-gallon $4 storage bins from Wallymart, into which I drilled holes in the tops, put in net pots of various sizes, and rockwool cubes. I added a bit of fertilizer to the water - don't know if I was supposed to do that. The lettuces came up in less than 48 hours. They looked a little puny for 2-3 weeks, then took off. I was able to pluck leaves for sandwiches by 4 weeks, and have had decent salads since then, although not every day - maybe every 3-4 days. I also have a pretty energetic-looking cherry tomato plant (Sweet 100 seed). I'm hoping it will produce but we'll see. It's about 6 inches tall. Raising the light is so simple, and you can put one side higher than the other.Cucumber seed and mint and parsley plants growing very, very slowly, and cilantro hasn't done well at all. Green onions are kind of just sitting there, thinking about growing, but maybe not... It will be a learning process, no doubt.I might buy another one, but I'm going to just use this one for awhile to make sure it lasts. I have it running about 16 hours per day. I think the next time, I'll buy one of the 4 light bulb fixtures as this one only has one bulb. But that one bulb is supporting 11 plants growing in water!SECOND UPDATE (Nov. 5 2013) I'm posting pics today. My pics show the side with the tomato under it much higher than the lettuce/parsley/onion side. The tomato fell over today but is otherwise healthy-looking (no tomatoes yet) so I have to figure out some way to prop it up. I think maybe just one of those metal cages with foil on it might work. I'll try it and post further pics. I am enjoying this grow light (and my fresh salads) so much!! I'm ready to move on to bigger and better lights, but wow are they expensive. With this affordable one, you can grow lettuces and herbs with no effort whatsoever, and hopefully more - we'll see! I'll post further pics when the tomato and cucumber do whatever they're going to do.THIRD UPDATE (Dec. 24 2013) So, Amazon has removed all my pics! Too bad as this fabulous light fixture is now producing lovely little tomatoes from an enormous plant! I'm definitely buying more! BUT, I also note the product pic has changed so I don't know if I can still make one side higher than the other - that was a nice feature. The only thing I tried that didn't grow was cukes.
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Top reviews from the United States

Reviewed in the United States on September 26, 2013
Size: 4'Style: T5 Grow Light SystemVerified Purchase
Customer image
5.0 out of 5 stars Great product!
Reviewed in the United States on September 26, 2013
Apparently, there are many similar products being sent under this same item no. The item I received was uber-simple to put together, no tools needed. It is quite sturdy - not even a little bit flimsy or rickety. The light lowers and raises very easily.

The reason I bought it is that I just can't grow anything outside and would very much like to grow my own lettuces and houseplants indoors hydroponically. Eventually I'd like to grow tomatoes and peppers, too, but I think you have to buy a super-expensive light for those. I'm just looking to start this operation now, so I thought I'd try one of the cheaper lights first. I'll update this review in a couple months to let you know if it worked with this light fixture, and add pics if it did.

FIRST UPDATE (Oct 25 2013): I planted lots of lettuces and a few other things hydroponically in 3 5-gallon $4 storage bins from Wallymart, into which I drilled holes in the tops, put in net pots of various sizes, and rockwool cubes. I added a bit of fertilizer to the water - don't know if I was supposed to do that. The lettuces came up in less than 48 hours. They looked a little puny for 2-3 weeks, then took off. I was able to pluck leaves for sandwiches by 4 weeks, and have had decent salads since then, although not every day - maybe every 3-4 days. I also have a pretty energetic-looking cherry tomato plant (Sweet 100 seed). I'm hoping it will produce but we'll see. It's about 6 inches tall. Raising the light is so simple, and you can put one side higher than the other.

Cucumber seed and mint and parsley plants growing very, very slowly, and cilantro hasn't done well at all. Green onions are kind of just sitting there, thinking about growing, but maybe not... It will be a learning process, no doubt.

I might buy another one, but I'm going to just use this one for awhile to make sure it lasts. I have it running about 16 hours per day. I think the next time, I'll buy one of the 4 light bulb fixtures as this one only has one bulb. But that one bulb is supporting 11 plants growing in water!

SECOND UPDATE (Nov. 5 2013) I'm posting pics today. My pics show the side with the tomato under it much higher than the lettuce/parsley/onion side. The tomato fell over today but is otherwise healthy-looking (no tomatoes yet) so I have to figure out some way to prop it up. I think maybe just one of those metal cages with foil on it might work. I'll try it and post further pics. I am enjoying this grow light (and my fresh salads) so much!! I'm ready to move on to bigger and better lights, but wow are they expensive. With this affordable one, you can grow lettuces and herbs with no effort whatsoever, and hopefully more - we'll see! I'll post further pics when the tomato and cucumber do whatever they're going to do.

THIRD UPDATE (Dec. 24 2013) So, Amazon has removed all my pics! Too bad as this fabulous light fixture is now producing lovely little tomatoes from an enormous plant! I'm definitely buying more! BUT, I also note the product pic has changed so I don't know if I can still make one side higher than the other - that was a nice feature. The only thing I tried that didn't grow was cukes.
Images in this review
Customer image Customer image
Customer imageCustomer image
79 people found this helpful
Report
Reviewed in the United States on September 25, 2014
Size: 4'Style: T5 Grow Light SystemVerified Purchase
Reviewed in the United States on March 30, 2014
Size: 4'Style: T5 Grow Light SystemVerified Purchase
One person found this helpful
Report

Top reviews from other countries

M Center
4.0 out of 5 stars Four Stars
Reviewed in the United Kingdom on March 23, 2018
Size: 4'Style: T5 Grow Light SystemVerified Purchase
Miguel Mallet
5.0 out of 5 stars This really works ! Don't let bad review fool you.
Reviewed in Canada on May 14, 2016
Size: 4'Style: T5 Grow Light SystemVerified Purchase
Customer image
Miguel Mallet
5.0 out of 5 stars This really works ! Don't let bad review fool you.
Reviewed in Canada on May 14, 2016
I just love this. Don't worry about the bad reviews saying nothing grow or something in that nature. I'm telling you, its not the lighting. Just look at the pictures. It's ridiculously easy to setup with no tools required, really sturdy once setup. Everything you see was started from seed in a Dome and then transplanted in dirt like you see on the pictures. I have carrots, green peppers, watermelon, honeydew, celery, lettuce, beets, cannabis, kale, spinach and EVERYTHING sprouted and grew like there was no tomorrow and still going because right now where I live, its still too cold to bring all this outside so I keep it under these lights and maaaan they love it! Just look!

EDIT: I just ordered a second one as much I'm in love with this thing. I sprouted too much stuff now I'm out of space so I need a second one. It works great!

2nd EDIT: Now it's 2017 and I'm still using the same one and I added one picture. I have Thyme, cuccumber and peppers on that one and all that was started from seed and only under this light. It works. Amazing
Images in this review
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Customer imageCustomer imageCustomer image
23 people found this helpful
Report
jennell castillo
4.0 out of 5 stars Great for beginners
Reviewed in Canada on September 24, 2018
Size: 4'Style: T5 Grow Light SystemVerified Purchase
One person found this helpful
Report
Amazon Customer
3.0 out of 5 stars Not easy to store
Reviewed in Canada on April 21, 2018
Size: 4'Style: T5 Grow Light SystemVerified Purchase
Amazon Customer
5.0 out of 5 stars Awesome!!!
Reviewed in Canada on March 29, 2016
Size: 4'Style: T5 Grow Light SystemVerified Purchase