My old trailer had a mixture of older and newer 12V fixtures, all with incandescent bulbs.
I wanted LEDs and I was looking at replacing the fixtures anyway with some LED pucks.
Problem is, over here it's pretty hard to find LED pucks for less than about $15 each.
Then one day at my local hardware store they had some 12V xenon puck in their bargain bin: $1.75 each. Home Depot sells the exact same
puck for $20 each !!
I grabbed 10 of them. Total: $17.50!
Then I ordered some LEDs that fits the xenon bulb's G4-type socket.
I paid $3.13 each (DealExtreme.com
). I had to make some modifications to the puck to fit the LEDs, but it turned out great! Now I have my pucks for less than $5 each. And they have this nice "brushed metal" finish that matches my interior.
The LEDs I picked are rated for 8V to 30 V, so I'm not concerned about the possible high charge voltage from the converter. Anyway, this type of LED is real easy to find if I ever need a replacement.
They are not quite as bright as the original xenon bulb, I would say about 80% as bright. But they run much cooler, and draw 0.12A versus 1.45A for the xenon bulb (less than 10% of the power draw).