175watt mv or 70watt mh

[sheist]

so if the mv light produces harmful radiation, why use it?

am I to get that using its radiation potency for certain lengths of time can positively effect the upgrowth of the plant?

sheist Reviewed by sheist on 08-17-2005. 175watt mv or 70watt mh I have a question the light i have is a 175watt mercury vapor I know this sucks but I was told a 70watt metal halide would run off the same ballast I asked a guy at the electric supply store and he said it should work does anyone know for sure and if so which is better Rating: 5