I purchased the Old Style Mars Hydro light (600w) and the temps got in the 90s sometimes. My grow space is 36"x20"x65". Even if it's not similar wattage output (264w) which light between Mars ll, Old style, and reflector series stays the coolest. Thanks in advance yall. These cfl's are dong nice but I know the yield will not compare to what I could get with LED.
