Spectrum King SK600 120v LED Grow Light for Full Spectrum Lighting

I use Spectrum King Led, and have been for a couple of years now. These lights produce, and the lab test/data doesn’t lie! When I see negative reviews that say they don’t produce, I can only assume that they haven’t used these lights. Heck, the negative reviewers are probably Spectrums competition. I had the 400, one of their first lights. I called Spectrum to ask about the Mother’s Little Helper, and when I told them which light I had, they offered to replace my led board with a brand new board that had newer technology. Nothing was wrong with my other one. It was just outdated tech, and they replaced it at no charge. I only payed shipping ($50 round trip UPS). Spectrum King is a awesome company!