We read articles on converting Hubbell wall packs bay lights 175 watt to 85watt CFL spiral type--made calls and found weak spot was overheating in light unit. So we did conversion and then put a 3x3" computer fan to move air around to cool lamp----last night we did a quick test---the original 175 w lense was fairly hot---the conversion was just warm---I know--very scientific---so the next thought was---these plastic lenses may actually last longer as it seems heat is to blame for ruining plastic lens over time? we say now the light is supercharged---Blown.