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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only

300-399 Watt Grow Lights

This selection provides robust output for advanced vegging and moderate flowering phases. Ideal for 3x3 tent setups, these lights hit mid-range PPFD targets for growers scaling their output. They deliver spectrum consistency and efficiency, making them a smart investment for home or hobbyist growers looking to push plant growth further.

Transitioning to a larger grow setup? Reach out for bulk options and check if you're eligible for rebate programs!

SP-3000R PPFD heat map showing uniform light intensity distribution over canopy at 24-inch height.
Mars Hydro SP-3000R LED grow light with red spectrum lighting for indoor plant cultivation.
$289.99 - $289.99
$289.99
$289.99 - $289.99
$289.99

Mars Hydro SP 3000R 650-665nm Red Spectrum LED Grow Light

Mars Hydro

300W red spectrum LED grow light optimized for flowering, with 3.3 μmol/J PPE and IP65 waterproof rating for greenhouse use. Target your flower pha...

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$289.99 - $289.99
$289.99
$289.99 - $289.99
$289.99
Spectral distribution chart of the SP 3000 full spectrum LED, highlighting peaks in red and blue wavelengths, and promoting flowering, leaf growth, and fruiting.
Angled view of the Mars Hydro SP 3000 LED Grow Light, showing its sleek, rectangular bar-style design with the brand name on the side and dual LED panels illuminated.
$229.99 - $229.99
$229.99
$229.99 - $229.99
$229.99

Mars Hydro SP 3000 Full Spectrum 300W LED Grow Light

Mars Hydro

300W LED grow light with high red spectrum, waterproof build, and silent cooling for 2x4 ft high-PPFD grow setups Penetration power meets precise c...

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$229.99 - $229.99
$229.99
$229.99 - $229.99
$229.99
Macro view of a Samsung LM301H EVO chip, emphasizing its market-leading efficiency of 3.14 µmol/J and Mars Hydro branding.
Product image of the Mars Hydro FC4000 EVO LED grow light, showcasing its bar-style design with integrated diodes and driver.
$289.99 - $289.99
$289.99
$289.99 - $289.99
$289.99

Mars Hydro FC 4000-EVO 320W Dimmable Full Spectrum LED Grow Light

Mars Hydro

320W LED grow light with Samsung LM301H EVO chips, 2.85 µmol/J PPE, and 4x2 ft coverage for full-cycle indoor cultivation. Small footprint, big res...

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$289.99 - $289.99
$289.99
$289.99 - $289.99
$289.99