fwiw, I am running 3x 250 MH on socket 1 of my PC4. They draw 5.7 amps of the 8 amps that outlet is capable of handling. on that same PC4, I have my actinics in #4, and fans and loop pump in 2&3. total out I hit 9 amps across the entire strip when all are lit. halides and actinics do not run at same time.