Grow Light Science Coupons & Deals October 2026

Good quality, fair price, but check the extras

I was looking to upgrade my grow light setup and came across Grow Light Science. I'm always on the hunt for a good deal, and while they don't seem to have a ton of discount codes floating around like some other brands, their base prices are pretty competitive, especially compared to Gavita or Fluence. I ended up getting a couple of their dimming daisy chain cables, and they're solid quality. My only minor gripe is that I had to double-check if the lights came with power cords – turns out they do, but it's not super clear right away on the product pages. Still, for the price, it feels like a worthwhile investment.

Good lights, took a bit to get here

Ordered a PROGROW 850 a couple weeks ago. It's a solid light, pretty bright and seems well-built. Setting it up was straightforward, even for me. Shipping was okay, took about 6 days to reach me in California, which felt a little long. Everything else was smooth though, no complaints really.

Decent PROGROW 2400 purchase

I bought a PROGROW 2400 light from them a while back. The light itself is great, very powerful, and my plants have been doing really well under it. Installation was pretty simple; the included mounting hardware was useful. I did have a small question about the dimming daisy chain cables, and customer service got back to me within a day, which was good. My only minor gripe was that the website could use a bit more detail on setting up the master controller. It wasn't hard, but I had to dig a bit for instructions. Overall, a good experience and a quality product for the price.