JUST RETROFITTED A 150W (DOUBLE ENDED) MH TO MY HOOD. IT CAME WITH A 3/16 PIECE OF TEMPERED THAT I CANNOT FIT. I AM REPLACING WITH A 1/8 PIECE OF TEMPERED. IS THAT OK? BETTER BE BECAUSE I DON'T HAVE A CHOICE! ALSO, IS IT EASY TO ADD A COMPUTER FAN WIRING WISE? HOW DO YOU DO IT? JUST TAP INTO THE WIRES?