Go lumatek or if you want to go high end..i did The Galaxy ballasts ae too nasty, so is the cost 400 bills, it runs 400,600, 0r 1000 like the lumatek. With one major exception, the lumatek you buy a 600 and it dims it....the galaxy can run 400 600 or 1000w bulbs themselves OR do what I did and get the 1g bulb and dim it. So you have more options, to go big or shrink down. May cost moe now but if you decide to expand...most of us do, you are only out another bulb at worst. If you want the best reflection from a hood go adjust a wing, my harvests are 20-40% larger and my nug size is consistant! 2 cents deposited!