I currently have a coralife aqualight pro 1x150W DE MH with 2x65W PC. It is about that time to change bulbs again, and I would really like to go back to a 250W MH. I was wondering what all I would need to change in order to successfully convert my fixture from 150 to a 250. I know I would need a new ballast, but how about wiring? Would the existing wiring and ceramic bulb holders, sorry not sure what the actual name is, be able to handle the increase in load? Also, I cannot remember if 250W and 150W DE bulbs are the same length. Any ideas?