best led grow light for 4x4 tent Best LED for 4x4 Tent is the ROI-E420 LED Grow Light by Grower's Choice –  PowerGrow Systems & Utah Hydroponics
SKU: 76818685183
best led grow light for 4x4 tent

best led grow light for 4x4 tent Best LED for 4x4 Tent is the ROI-E420 LED Grow Light by Grower's Choice – PowerGrow Systems & Utah Hydroponics

Sale price$19.52 Regular price$21.69
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Description

best led grow light for 4x4 tent Best LED for 4x4 Tent is the ROI-E420 LED Grow Light by Grower's Choice – PowerGrow Systems & Utah HydroponicsThe ROI 420 LED grow light by Growers Choice is a high performance and affordable LED Grow light solution for home and commerical growing. The ROI E420 LED grow light is the perfect light for a 4x4 or 3. 5x3. 5 grow tent, and provides a fully balanced spectrum to take your plants from seedling to harvest! Super Efficient: Total output of 1090 mol s and a wattage draw of 420 watts, the ROI E420 has a 2. 6 mol J system efficacy. So you save about 40% on

The ROI-420 LED grow light by Growers Choice is a high performance and affordable LED Grow light solution for home and commerical growing.  The ROI-E420 LED grow light is the perfect light for a 4x4 or 3.5x3.5 grow tent, and provides a fully balanced spectrum to take your plants from seedling to harvest!

  • Super Efficient: Total output of 1090 μmol/s and a wattage draw of 420 watts, the ROI-E420 has a 2.6 μmol/J system efficacy. So you save about  40% on electricity costs compared to HID not to mention it can cut cooling requirements by up to 40%.
  • User Friendly Control: The dimming feature lets you adjust the light output down from 0-10V when plants don’t need the full power, which allows you to take plants from seedling to harvest with one LED grow light.
  • Even Light Distribution: The LED bars are evenly distributed and the light from the fixture travels evenly across the grow space.
  • 3-Year Warranty & Safety Certified: Rugged, waterproof housing makes it ideal for use wet and humid environments.  Backed with a 3-year warranty.
  • Controller Compatible: Use the Grower's Choice, or any high end Master LED lighting controller for ultimate control.

The precision developed GC-3K full phase spectrum fills the gap of traditional LED grow lights, and is very close to natural sunlight. This enhanced spectrum provides all the blues, boosts of red, and UV to meet all your plants needs during both Veg and Flower phases, which leads to increased yields over traditional LED grow lights.

The ROI-E420 is recommended for a 4'x4' footprint at a height of 6-24" above the canopy for vegetative phases, and 8" is recommended for the flower phase.

 

The ROI-E420 LED grow light is certified to  ETL, CE certification, and IP65 waterproof standards, and includes a 3-year factory warranty from Growers Choice.

Specification:

  • Wattage draw: 420 watts
  • HPS equivalent: 800w
  • LEDs: Osram LEDs; 54,000-hour lifespan until L90
  • Spectrum: GC-3K Full Phase; Full spectrum with 660nm deep red
  • PPF (light output): 1090 umol/s
  • PPF/Watt: 2.6 umol/j
  • Beam angle: 120°
  • Coverage area: 3' x 3' (Flowering) to 4' x 4' (Vegging)
  • Mounting height: 6-24" above the canopy
  • Dimensions: 35.3” L x 34.6” W x 3.2” H
  • Cooling: Passive
  • Dimming: Dimmable on the unit, more controllability with controller (not included)
  • Operating temperature: -20°C to +45°C
  • Operating/input voltage: 110-277v AC
  • Amperage: 120V: 4.0A / 208V: 2.5A / 240V: 2.0A / 277V: 1.8A
  • Product weight: 19.4 lbs
  • Additional details: IP65; UL8800, UL1598, DLC, and CE certification
  • Recommended for: Home grows, Commercial grows, Grow rooms, Tents
  • Manufacturer's Warranty: 3 years full
    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: 76818685183

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    D R Chapman
    Natrona Heights, US
    ★★★★★ 5
    Good value
    Style: 16.3 sqft(15 pcs), Material Type: Aluminum 197 mil
    Works well in installation but recommend an aluminum foil tape to go over all seams. Seems to work well as a heat insulator. Not sure about durability UNTILL we get some years under our belts.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 8, 2026
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    Verified Purchase
    shmoke
    Omaha, US
    ★★★★★ 3
    Absolutely zero difference. Anyways, I have both doors full of the stuff. I'd pass if I were you.
    Style: 8.7 sqft(8 pcs), Material Type: Aluminum 197 mil
    Not what I was thinking. I've used insulation like this that was composed of heavy material, this one is not. This product must be for boats or airplanes where weight is a primary consideration and noise is not a problem. This is too light to have an effect on vibration or road noise. Absolutely zero difference. Anyways, I have both front doors full of the stuff and I'd pass if I were you.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2025
    R
    Verified Purchase
    Rebekah
    San Leandro, US
    ★★★★★ 5
    Great in my trunk
    Style: 16.3 sqft(15 pcs), Material Type: Aluminum 197 mil, Style: 16.3 sqft(15 pcs), Material Type: Aluminum 197 mil
    Was almost enough to do my full trunk on my 2012 civic si. I have exhaust and a subwoofer that were making a lot of rattles and drones in the trunk. Took everything out and covered about 70% of everything including the wheel wells and the rear deck support, even put some under my spoiler and behind my license plate. Now, quieter ride and no vibration from the trunk inside OR outside the car even with bass cranked up. This is a great product and I would definitely recommend.
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    Reviewed in the United States on March 7, 2026
    J
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    JP
    Boise, US
    ★★★★★ 5
    Does the job well
    Style: 37.1 sqft(34 pcs), Material Type: Aluminum 197 mil
    Really nice quality. There are strings woven into the top along the foil. Easy to work with. The backing peels off smooth and usually in one piece. Great value
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 25, 2025
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    K.M
    Bozeman, US
    ★★★★★ 5
    Great and light!
    Style: 30 pcs
    Worked out great. Good stuff and sound deadens the vehicle without adding a ton of weight.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 3, 2026

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