I'm wanting to a switch to a 250w radium but I wanna see for myself the difference of the bulb when ran on a m80 ballast and a e-ballast. If anyone is willing to let me check out their tanks, that would help.
I have an old Radium 250K bulb you can have. Its not the exact spectrum you would get on a new bulb, but it will give you the picture. It has about 9months of use on it.
thad be great man! i just wanna get a hint at least. looking at the spectral plots it looks like an m80 ballast would be bluer which i would prefer, but im getting conflicting reports from threads on rc