Best LED Grow Lights Under 300 Watts Ranked

10 LED grow lights under 300 watts.

Last updated: November 2, 2026

A grow light under 300 W suits seed starting, herbs, leafy greens and houseplants, or a 2x2 to 3x3 ft tent with a few pepper or tomato plants. Most hang from a tent bar or a shelf on adjustable cords, and the dimmable ones can be turned down for young seedlings and up as plants grow. A 100 W panel is enough for a seed starting shelf; a 150 to 200 W light covers a small tent of fruiting plants.

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 10

  1. Spider Farmer SE1500
    #1 of 104.5Full review

    An efficient, app controlled bar light for a 2x2 ft tent of herbs, greens or a few vegetable plants. Buy it direct, where it was cheaper than on Amazon.

    Amazon $125.99 Spider Farmer $109.99
    $109.99
    150 W428 µmol/s2.9 µmol/J
  2. Mars Hydro FC1500
    #2 of 104.5Full review

    An efficient bar light for a small tent of herbs, greens or a few vegetable plants.

    Amazon $115.99
    $115.99
    150 W427.5 µmol/s2.9 µmol/J
  3. Mars Hydro FC-E1500
    #3 of 104.5Full review

    A low cost, efficient bar light for a 2x2 ft tent of seedlings, herbs or greens.

    Amazon $105.99
    $105.99
    150 W420 µmol/s2.8 µmol/J
  4. Spider Farmer G1500
    #4 of 104.5Full review

    A low cost, app controlled bar light for a 2x2 ft seedling or herb tent. It matches pricier bars on efficiency.

    Amazon $109.99
    $109.99
    150 W426 µmol/s2.8 µmol/J
  5. Spider Farmer SF2000
    #5 of 104.3Full review

    A quiet single panel for a 2x4 ft tent or a seedling shelf. Choose it for its simple build; a bar light gives more light for the money.

    Amazon $159.99 Spider Farmer $155.99
    $155.99
    200 W553.9 µmol/s2.7 µmol/J
  6. Spider Farmer SF1000D
    #6 of 104.1Full review

    A low cost, quiet panel for seed starting, herbs and a small 2x2 ft tent. Pick a bar light instead if you want the most light per watt.

    Amazon $59.99
    $59.99
    100 W219 µmol/s2.5 µmol/J
  7. Spider Farmer SF1000
    #7 of 104.1Full review

    A light, quiet panel for a 2x2 ft tent of seedlings, herbs or leafy greens. Good value for a first grow, though bar lights use less power for the same light.

    Amazon $69.99
    $69.99
    100 W249.2 µmol/s2.5 µmol/J
  8. Mars Hydro TS1000
    #8 of 104.0Full review

    A cheap, simple panel for a 2x2 ft tent. Good for a first grow, though a bar light of the same wattage gives noticeably more light.

    Amazon $85.49
    $85.49
    150 W343 µmol/s2.3 µmol/J
  9. Mars Hydro TS600
    #9 of 102.8Full review

    A cheap starter panel for seedlings, microgreens or a few herbs. Spend a little more on a bar light for anything that fruits.

    Amazon $59.99
    $59.99
    100 W190 µmol/s2 µmol/J
  10. HLG 100 V2 4000K
    #10 of 102.2Full review

    A simple, silent white panel for a shelf of seedlings or herbs. Hard to justify on price against the cheaper dimmable panels here.

    Amazon $149
    $149
    95 W224.5 µmol/s2.4 µmol/J