ok....so I'm ready to step up to MH......I am going to build my own top.......

looking around it seems Double Ended MH (bulb and ballast) costs about twice as much as Mogal Base MH.....the question I have is

WHY

if you have:

a 250Watt Double Ended MH (with a PFO 250W HQI ballast made for double endeds)

AND

a 250Watt Mogal Base MH (with a M58 ballast)


I would take it that the Double Ended SHOULD be brighter right (I mean.....it costs twice as much......)?

but does it really do twice as much light? how much brighter is it really? is the light "better" in some way?