I've finally found the time to update this site from its humble beginnings; it was bothering me that so many sites claiming to compare or review LED grow lights were just being paid to place lights in their "best" list or were selling the lights for a cut of the profit. It wouldn't bother me if they were recommending or selling good lights, but most of the ones being pushed are very poor excuses for LED grow lights- the kind that give all LED lights a bad name. Having grown with LED lights for several years now, I know just how well they can work, if you get the right ones and wade through all the lies in marketing material.
It took a lot of research and work but there's a ton of data here to peruse, spread across 16 different categories to help you find the best LED grow light for your needs. The single table to compare all data in just doesn’t fit anymore; comparing over 130 lights with over 40 data points for each makes for a really big table!
I'm only adding ads to this site to pay for hosting; if they bring in enough I'd like to get a good spectraradiometer to be able to get light's true spectrums, because I'm pretty sure many of the spectral graphs on LED vendors' websites are just made up or wrong.
Some companies changed things between when I did all the research and when I finally managed to launch the site; I'll be updating those shortly. There are already a few other companies I'd like to add to the comparison as well.
Enjoy the site!