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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!

Graph highlighting 660nm red spectrum boost from Mars Hydro TSW 2000 for improved flowering and crop yields.
Mars Hydro TSW 2000 LED grow light with full spectrum diodes and reflective cover for indoor plant cultivation.
$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99

Mars Hydro TSW 2000 Full Spectrum 300W LED Grow Light

Mars Hydro

Powerful, energy-efficient full-spectrum lighting with dimming for versatile indoor grow coverage. The TSW2000 LED Grow Light is a top choice for h...

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$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99
Underside view of the Photontek SQ 300W Pro LED grow light showing dense LED diode array on red bars.
Photontek SQ 300W Pro LED grow light with square multi-bar frame and external driver mounted on top.
$379.00 - $379.00
$379.00
$379.00
$379.00 - $379.00
$379.00

Photontek SQ300W PRO LED Grow Light

Photontek

Powerful full-spectrum LED delivering high efficiency and intensity for compact 3.3' x 3.3' grow spaces. For tight spaces that demand high efficien...

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$379.00 - $379.00
$379.00
$379.00
$379.00 - $379.00
$379.00
PPFD map for the Mars Hydro TSL 2000 in a 4x2 grow tent at various hanging heights to show light intensity distribution.
Mars Hydro TSL 2000 LED grow light with full-spectrum diodes on a rectangular panel for indoor plant cultivation.
$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99

Mars Hydro TSL 2000 Full Spectrum Dimmable 300W LED Grow Light

Mars Hydro

Efficient full-spectrum lighting delivers powerful coverage with 25% less energy for indoor grows. The TSL2000 LED Grow Light delivers efficient, h...

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$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99
Full spectrum chart of the Mars Hydro FC-E3000 showcasing light wavelengths for flowering and growth, including 2800–3000K warm white, 4800–5000K white, and 660–665nm red.
Overhead view of the Mars Hydro FC-E3000 LED grow light with 4 LED light bars, central green heatsink unit, and included hanging accessories and control panel.
$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99

Mars Hydro FC-E3000 300W Smart Dimmable LED Grow Light

Mars Hydro

Efficient 300W LED grow light with full spectrum, 2.8 μmol/J PPE, and smart control for 2–4 plant indoor grows. Dialed-in performance for first-tim...

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$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99