I have a coin door with no guts so I need to fabricate the light set up on the coin returns. I'm looking at the LED wedge lights and wondered what would be the best size to go with for this, the 1 3/4 or the 3 1/4? I would guess using the 12v would be the way to go if I plan on powering it off the CPS. Any recommedations would be appreciated. Thanks