Ceramic Metal Halide CMH 315W Lamp Comparison Test Data & Review

There are many 315W Ceramic Metal Halide CMH lamps available, but which one is the best for you? We take 10 of the most popular CMH lamps in both 3K and 4K spectrums and test them so you don’t have to. Get ready for some data and our recommendation for the best 315W Lamps for your indoor garden needs.