Hydrofarm 4-foot Jump Start Grow Light System

by Hydrofarm
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ITEM# 13984084
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      Included Warranty: 1 year Limited Manufacturer
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    ITEM#: 13984084

    Enjoy fresh vegetables, berries, and flowers all year long with this grow light system, from HydroFarm. Ideal for seedlings, cuttings, flowers, and houseplants, this four-foot wide lighting system provides fifteen- to twenty-percent more lumens than regular grow lights, helping plants grow even faster. Extremely easy to assemble, this grow light system will help you get your own greenhouse started in no time. 

    • Made of plastic and metal
    • Grow light system
    • Grounded
    • Includes on/off switch
    • White shades
    • Single light with a 54-watt bulb included
    • Covers growing area of 31 inches wide x 18 inches deep x 50 inches tall
    • Dimensions: 8.5 inches long x 53 inches thick x 7.5 inches high

    Assembly Required


    Material Plastic
    Color Black
    Condition New
    Dimensions 8.5 inches long x 53 inches wide x 7.5 inches high
    Warranty 1 year Limited Manufacturer
    Model Number JSV4
    Country of Origin China

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Recent

    • Great plant light
      Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      My seedlings flourished under this light, and it's the perfect width for two covered seedling trays. I got it in the summer, so only used it for my Fall garden, but now that it's just about time to start my spring seedlings, I'm really looking forward to using it. It sure will save me money this year, as I won't have to buy so much at the nursery. Just soil and maybe a few things. It was very easy to set up, and the light is easy to raise and lower.

      Read More
      Mary R. Jan 9, 2018
    • great for winter and spring gardening
      Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      If you like to garden, this extends the growing season by bringing the garden indoors, and enables you to start plants indoors easily. Great purchase.

      Read More
      amphibianz Nov 22, 2017
    • Hydrofarm 4-foot Jump Start Grow Light System
      Verified Purchase

      This is exactly as described. Now my husband can garden indoors as well.

      Read More
      Anne Marie H. Oct 31, 2017
    • Great product!
      Verified Purchase

      This is a very nice setup.

      Read More
      OstkUser1460401 Oct 26, 2017
    • Grow lights
      Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      I have a lot of succulents so I bought 4 of these to provide light in the greenhouse during the dreary winter months. We suspended then from the ceiling and they worked perfectly.

      Read More
      Susan B. Oct 22, 2017
    • Most Helpful

    • Exactly what I wanted!
      Verified Purchase

      I did a lot of research before buying this system. It arrived securely packaged, assembled quickly and functions simply and easily. Most importantly, my seedlings this year are the healthiest I've ever started. I am very pleased with this purchase.

      Read More
      diathombari Apr 28, 2012
    • Sturdy Stand, easily assembled
      Verified Purchase

      I am a 67 year old grandmother and was able to assemble this by myself following the directions in under an hour. It took me a few minutes to realize I had to remove the blub and pull off the foam holders that protected the blub from jostling and then replace the blub before it would light. I have been using it for 6 days and have seedling sprouting.

      Read More
      virginia650 Mar 23, 2012
    • Nice Grow Light
      Verified Purchase

      For some reason I thought there would be two bulbs in this light. However, I think the grow light is good. It is what I expected otherwise. If I were to buy this again, I think I'd buy two 2-foot grow lights instead of this long one.

      Read More
      pbhagyam Mar 11, 2012
    • Hydrofarm Jump Start Grow Light System 4'
      Verified Purchase

      I originally purchased one of these a few months ago from a different web site and was so happy with it that I decided to order another one and thankfully Overstock.com had it in the lowest price range that I was looking for. I was pleasantly surprised that the stand was a little taller than the 1st one that I bought and the lighting system works well allowing me to start my vegetable garden seeds indoor early. Otherwise I would have to wait until May to plant my seeds given the long New England winters. I liked this system so much that I purchased one for my brother-in-law, for Christmas, who is also an avid gardener.

      Read More
      czbratt Apr 24, 2012
    • A good little light
      Verified Purchase

      I set up the grow-light and ballast and purchased 2 trays of Jiffy starter squares and some organic 'strating' soil. I also purchased a timer and have the timer programmed to have the bulb running 18hrs a day. The sprouts are coming out very quickly and easily overtook the plants I placed outdoors almost two weeks earlier. I would recommend that if you have the indoors, get a "space" blanket to put over the light and ballast system because the light is very strong. Happy growing!

      Read More
      zamboney Mar 29, 2012

    Questions & Answers

    • Q:

      "Will this take 220-240 voltage or is it only 100-127 volt compatible?"

      • A:

        It will probably short out if you up the voltage. It works fine on 110.

    • Q:

      "I am confused about what the width and height of the frame is. I am not sure if it is suppose to fit on my table or on the ground."

      • A:

        It is long. You could put it on a table, but it will take up most of the table. i have it sitting on the floor on a piece of plywood, and that works perfectly for me.

    • Q:

      "Why did you choose this product?"

      • A:

        Internet search. Customer Comments

      • A:

        Free Shipping

      • A:

        I grow my own vegetables year round and these lights work wonders!

      • A:

        Good reviews

      • A:

        to germinate seeds indoors before the ground is thawed

      • A:

        Sprouting vegetable and native plant seeds.

      • A:

        I liked the price. This is my second season with the Jump Start. I use it in conjunction with heat mats to germinate seeds inside to move outside to my vegetable garden in the Spring. It's perfect for that. I really like that the light adjusts up and down, so you can change the height of the light as the plants grow. The adjuster works about like the cord on a mini-blind. You stop the light at the height you choose.

      • A:

        I grow a lot of seedlings and need something bigger. What I am currently using is an inadequate rigged up system.

      • A:

        good reviews good price

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