To answer your question - they probably wont work, but I'd try putting 12v across them just in case they do (the chance of breaking something by doing this is pretty slim). If 12v lights it up enough for you - just rock it.

The above post is great information if you are buying LED's yourself, or can break open the lights and access the internal wiring. Not sure how much messing you want to do - I'm not sure thats even possible for the LED light fixtures that I've seen.

I agree with most of the content in the threads the aklim linked - you really need a 12v - 24v converter to do this at all. not sure if thats worth the cost or not.

-John

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