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!

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Tarantula Tent Ultimate 2x4 PPFD Map with height measurements and average PPFD values on a white background.

Grand Master LEDs 2x4 grow tent light showing uniform LED coverage and dimming control for vegetative and flowering.

$350.00 - $350.00

$350.00

$350.00 - $350.00

$350.00

Grand Master LEDs Tarantula Tent Ultimate 2x4 LED Grow Light

Grand Master LEDs

Delivers unmatched uniform light distribution across 2' x 4' grow spaces with 320W of professional LEDESTAR diodes. The Tarantula Tent Ultimate 2x4...

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$350.00 - $350.00

$350.00

$350.00 - $350.00

$350.00

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

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

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good price great communication kept me informed on the delivery since the item was back-ordered

good price great communication kept me informed on the delivery since the item was back-ordered from manufacture.

Great price

These work great and being able to buy in bulk beats the heck out of Amazon pricing.

you can do better

its ok i don't think its worth the money i only got 150 more par over a 600 watt 6 bar light

Enjoying our new Harvest Right!

We are thoroughly enjoying our new Harvest Right Freeze Dryer!

awesome company

I mean, what can I say everything I’ve gotten from Rosineer is awesome so I mean really all I can say top-of-the-line I love it. I love it. You don’t have to hardly put anything on it. To press is so nice once again guys you knock it out of the park. I love it. I guess the only thing I can say is we wish you had your own filteris awesome so I mean really all I can say top-of-the-line I love it. I love it. You don’t have to hardly put anything on it. To press is so nice once again guys you knock it out of the park. I love it. I guess the only thing I can say is we wish you had your own filter bags that matches the block blocks and I have every size thank you so very much and fast shipping.

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300-399 Watt Grow Lights

Grand Master LEDs Tarantula Tent Ultimate 2x4 LED Grow Light

Photontek SQ300W PRO LED Grow Light

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