KOSCHEAL K6400 LM301H Bar LED Grow Light for 5x5ft Tent, with Smart Controller Port,Full Spectrum Daisy Chain Dimmable Grow Lamp,Output 640W

Bought this light in January 2025. Now it's July 2025 and one half is flickering. I reached out through manufacturer website but have received no response 😔. If seller/manufacturer sees this, please reach out to me. Customer service reached out to me immediately (thank you Daisy) and took care of the issue quickly as not to interrupt my grow. I am very, very pleased with the service I received. Will definitely be sticking with this manufacturer.

bough this about a year ago, and it exceeded my expectations. so bright (if you turn it up to max) that i keep an old pair of sunglasses nearby when i tend to the plants. i was lucky enough to find it periodically on sale.

Pro: This is a great light. My plants showed signs of growth the same day. Wow! It's been a couple of weeks now and the plants have been leafing out over 1.5-2 inches long now. The MarsHydro I had before took a month to do the same thing (and they started to burn out in 2 years). I used the distance of 18" to the top of the plants and adjusted the PPFD to 800 using the dimmer and iPhone PPFD light meter on each light. I screwed on an adjustable dual fan (ASIN : B0828TW8ZW) between the two ends of the lights to blow down on the plants to improve air circulation. The 150000hr of service life is better than other lights avertised on amazon. This saves money overall and doesn't cost the downtime to install them. I would recommend this to ALL. Great product for the price. Con: If you intend to daisy-chain the 110-277 volt cords between two or more lights, it's not included. The lights I received were delivered without this feature as advertised. Suggestions: 1. It would be nice to be able to switch from full spectrum to Bloom to Veg, to Seedling which would make it convenient instead of adjusting the dimmer and adjusting the height of the installation for each need. 2. A second height adjuster would be nice to be included. 3. It would be effective when purchasing to include an option for the dimmer Controller as part of the complete package. Advertising the feature of daisy chaining the dimmer and not providing the Controller option is worthless.

I have about 10 other LED lights that are 5or6 hundred dollars more than this light and at 50 to 60 percent power I'm at 800 to 900 ppfd perfect for flowering my other lights are at almost 100 percent so I'm saving money 💰💰💰🤑 this light is amazing for the price 260 dollars I'm pretty happy 😊😊 so far MAGOO 147PEACEOUT

This thing does the job. I've gotten some of my best grows from under this thing. Lm301h diodes are really good diodes. Plants really react to this thing compared to other lights I have at this wattage and size.

Light was working well - but in less than 10 months the entire light is flickering and no longer working. Tried to reach out on their website but did not receive any answer. Would love some customer support to address the issue. Please reach out.

good product !

This is a beast of a light. I will definitely be getting a few more when my grow area expands. Super easy to set up and get started. Best value for the money.