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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Spectral distribution chart of HLG 350 Diablo showing high PAR output across blue, green, and deep red wavelengths.

HLG 350 Diablo LED grow light with 'Diablo' branding on a white background

$549.00 - $598.00

$549.00

HLG 350 Diablo Full Spectrum LED Light

Horticulture Lighting Group

Maximize yield in tight spaces with 600W HPS power at just 330 watts. The HLG 350 Diablo is a powerful, high-efficiency LED grow light designed to ...

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$549.00 - $598.00

$549.00

Spectrum graph for the HLG Greenhouse Pro FS LED showing optimized full-spectrum output with blue, red, and deep red peaks tailored for cannabis plant growth.

Top-down shot of HLG Greenhouse Pro FS showing long rectangular design and full-spectrum LED layout, built for professional indoor or greenhouse installations.

$529.00 - $529.00

$529.00

$529.00 - $529.00

$529.00

HLG Greenhouse 350 Pro FS HV LED Grow Light

Horticulture Lighting Group

Enhance flower development with energy-efficient full-spectrum lighting. Built for commercial greenhouse cultivation, the HLG Greenhouse 350 Pro FS...

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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

HLG 350 Diablo Full Spectrum LED Light

HLG Greenhouse 350 Pro FS HV LED Grow Light

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