You can take the core and igniter (it might also have a capacitor) out and put them in another box remotely. You will need a cord from the light to the new box, and another cord back to the power receptacle (use the original cord for this). It will wire up exactly as it is now
My third official grow is a few weeks into flower under the 150. I'm still on the same bulb after a year. Not sure if I want to pick up a more expensive horticultural bulb, or try a 250w setup.
how many plants u got in there n wots the strain, looking good !