Clumpyoyster
Well-Known Member
so your saying don’t change the bulb. Cause the CMH is still in lolFalse. Everything began with metal halide back in the 70's. You can bloom plants with either MH or HPS. HPS has higher par output and is more effective that why people use it.
I like to mix HPS and MH to be able to get the internodal length I want. Plants stretch less under MH lighting. MH output more uv-b than HPS creating more frost and it grows stouter plants, ideal for indoor growing.