I just ran across this auction on Ebay for the power cord and other light parts. Just incase anyone is still looking.
Canister light parts
Scott
Canister light parts
Scott
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DIR Tec Diver once bubbled...
Homemade lights and cave diving???? Come on! Please please please do not do this. Your life is not worth saving a few bucks. These lights are expensive, but that is for a reason - they are the best. Building these things by yourself can and will most likely result in a failure and then what do you do??? Your life is not worth the pride of saying I made this myself. Just make the investment in the proper light and make the smart choice. You will appreciate it every time you dive, and have 1 less thing to worry about during your dive
David