This is something im planning to do and in fact already half way into building it.
The idea is I'm installing sections of LED strip behind the cabinet door and its on the door itself. This door is framed using plywood and having large rectangular cut-out in the middle which holds transparent glass. When the door is closed display items in the cabinet will be lit brightly by the LEDs but non of the LED will be visible.
Now to provide power to the LED mounted on the hinged door, im going to use the two hinges so that no extra wires needed.
Current draw by LED thru the hinges will be less than 500 mA thus i don't for see much power loss on the hinges.
Is this method have ever been tried by someone? Is there anything im risking on this attempt?