swapping out lights going old school

[Wretch]

I have looked at going to metal halides but my only concern was heat. I live in a condo and it gets quite warm in the summer. Using a fan and LEDs I can keep the temperature where I want it. Not sure how much a metal halide would raise the temperature. Also wasn't sure if 250w was enough and HQI or mogul. Was confusing to someone who came into the hobby when LEDs were the norm.