Best 300 to 1000 Watt LED Grow Lights Ranked

13 LED grow lights of 300 watts and up.

Last updated: November 2, 2026

A grow light of 300 W or more lights a 3x3 to 5x5 ft tent of full size vegetables such as tomatoes, peppers and cucumbers. At this size the difference in efficacy shows on the power bill, since a light often runs 12 to 18 hours a day, and bar lights usually spread light more evenly to the corners of a tent than a single panel. Check the weight against what your tent frame can hold.

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Full ranking 13

  1. Mars Hydro FC-E3000
    #1 of 134.6Full review

    A good value, water resistant bar light for a 3x3 ft tent of fruiting vegetables.

    Amazon $169.99
    $169.99
    300 W840 µmol/s2.8 µmol/J
  2. Mars Hydro FC-E4800
    #2 of 134.6Full review

    A water resistant bar light for a 4x4 ft tent of tomatoes, peppers or cucumbers, at a lower price than most lights its size.

    Amazon $289.99
    $289.99
    480 W1,344 µmol/s2.8 µmol/J
  3. Spider Farmer G4500
    #3 of 134.5Full review

    A good value bar light for a 2x4 ft tent of vegetables, with app control and far red included.

    Amazon $189.99
    $189.99
    320 W913 µmol/s2.9 µmol/J
  4. Spider Farmer G5000
    #4 of 134.5Full review

    A strong value bar light for a 3x3 to 4x4 ft tent of fruiting vegetables, with the same published output as the pricier SE5000.

    Amazon $299.99
    $299.99
    480 W1,420 µmol/s2.9 µmol/J
  5. Spider Farmer SE5000
    #5 of 134.4Full review

    A high efficiency bar light for a 3x3 to 4x4 ft tent of tomatoes, peppers or cucumbers. Worth it if electricity costs matter to you.

    Amazon $339.99
    $339.99
    480 W1,420 µmol/s2.9 µmol/J
  6. Spider Farmer SE3000
    #6 of 134.4Full review

    A dense, efficient bar light for a 3x3 ft tent of tomatoes, peppers or other fruiting plants. App control comes included.

    Amazon $199.99
    $199.99
    300 W856 µmol/s2.9 µmol/J
  7. Mars Hydro FC3000
    #7 of 134.4Full review

    An efficient bar light for a 3x3 ft tent of tomatoes or peppers.

    Amazon $199.99
    $199.99
    300 W855 µmol/s2.9 µmol/J
  8. Spider Farmer SE4500
    #8 of 134.4Full review

    An efficient bar light for a 2x4 ft tent or a long bench of vegetables, with app control included.

    Amazon $219.99
    $219.99
    320 W913 µmol/s2.9 µmol/J
  9. Spider Farmer SF4000
    #9 of 134.3Full review

    A single panel that lights a 4x4 ft tent of full size vegetables. It suits growers who want one simple fixture; bar lights are more efficient.

    Amazon $259.99
    $259.99
    450 W1,141 µmol/s2.7 µmol/J
  10. Mars Hydro TS3000
    #10 of 134.2Full review

    A single panel for a 4x4 ft tent of tomatoes or peppers. Choose it if you prefer one simple board; bar lights are more efficient.

    Amazon $269.99
    $269.99
    420 W1,151 µmol/s2.7 µmol/J
  11. Mars Hydro TSL2000
    #11 of 134.2Full review

    A long, narrow panel for a rack of seedlings or a row of herbs and greens. A good shape for shelves where square panels waste light.

    Amazon $169.99
    $169.99
    300 W778 µmol/s2.6 µmol/J
  12. Mars Hydro TSW2000
    #12 of 134.2Full review

    A mid size panel for a 3x3 ft tent of vegetables or a 4x4 ft tent of seedlings. Buy it direct for the lower price.

    Amazon $199.99 Mars Hydro $169.99
    $169.99
    300 W776 µmol/s2.6 µmol/J
  13. HLG 600 Rspec
    #13 of 133.3Full review

    A powerful, US designed panel for a 4x4 ft or larger tent. It costs far more for the same light than the bar lights here.

    Amazon $559.95
    $559.95
    600 W1,529 µmol/s2.6 µmol/J