I'm about to change my lighting scheme on my 125 and I am shopping for 250w electronic ballasts. Hellolights.com sells ARO ballasts for $99 which is $30 cheaper than the tried and true comparable Ice Cap ballasts. they also sell VHO retro ballasts kits quite cheaply compared to Ice Cap. I was wondering if anyone here has firsthand experience or secondhand knowledge of these products. Also, I will soon be offering upm a two-years used PFO dual 400w magnetic ballast for sale if anyone has interest.