I had a 20W MR16 setup on my front with a 12v "marker light" in the back hooked up to a 5aH SLA.

I decided to make the jump to the MagicShine from GeoManGear.

I'd like to repurpose the MR16/SLA setup to my kiddie bike trailer as a "Hey, I have a bike trailer here!" setup.

Anyone have any experience or thoughts about using those 12 (red) LED MR16 drop-ins as taillights? (http://www.dealextreme.com/details.dx/sku.12735)

I figured I could put two of those up high and use some yellow marker lights on the side. The battery would easily go in the trailer trunk and wouldn't add a noticeable amount of weight.