I AM LOOKING TO BUILD A MAG WITH A T50 LED CAN I MOUNT THIS LED ON THE HEATSINK WITH A THIN LAYER OF ARCTIC ??? AND DO I SOLDER THE WIRES TO THE UNDERSIDE OR ON TOP?? I HAVE SOME PARTS ON THE WAY AND TRYING TO WORK OUT SOME OF MY FEAR SINCE I AM TRYING TO DO THIS WITH INFO FROM CPF MEMBERS THANKS...THE ROOKY