Cool thank you for the info. The kit tom gave me the link for comes with adhesive to glue them down with. My ATI fixture just had a reflective insert that i can slide out and then adhere the LED's to the aluminum chanel under it. Its thick stuff so it should make for a great heatsink along with the cooling of the built in fan. I may go find a thin bar of aluminum to attach to the bottom of the chanel to mount the LED's on so they will set flush in the fixture, but it looks like it will work just fine. The only thing i need to do first is check out the wiring and make sure i can take a tube out without effecting any of the other bulbs.