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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Grand Master LEDs Master 6 Veg 660W LED Grow LightDescription Top Features: Designed for Commercial production, vertical racks, low ceilings and grow tents IP 66 Waterproof Folding Design for fast and easy installation Knob Dimming Recommended to be controlled with the Grand Master Controller Inventronics EUM 680 5 Year Warranty Specifications Max Wattage: 660W 240V Voltage Range: 120 277 Volt and 480V available Vegetation Footprint: 5' x 5' System PPF Efficacy: 2. 71 umol joul Total output: 1815 PPF
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2225 reviews
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Product Reviews
★★★★★ 5
Handy
Size: 4" - Black, Style: Open Hooks
I use an ocean container for storage and have some things that need to be hanging. These are perfect for any place you are unable to drive nails. I bought the stronger ones and have had no problems. Ordered more after trying them.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great gift for men who have everything for garage
Bought these as a gift for a man who has everything but these hooks. He loved them. size was perfect for garage and the magnetic strength was great.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
good quality
Size: 4" - Black, Style: Open Hooks
Really strong magnets. Holds up stall cleaning forks on the trailer wall even when under way
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Work great
Item Package Quantity: 6, Color: Black
Relatively strong hooks. The metal I have them on is thin so the magnets arent as steady as I hoped but thats my fault not the hooks. Ample hook space and solidly built
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Reviewed in the United States on March 23, 2024
★★★★★ 5
You need these!
Item Package Quantity: 4, Color: Black
These are not really “industrial strength” but they work great and are decent quality, especially for the price. I bought them to use on a sheet metal barn and they hold halters, rakes and other supplies with ease. Out of curiosity I did toss a dewalt drill in one and it held even though I ordered the medium size and the drill didn’t fit super well.
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Reviewed in the United States on August 6, 2025