Gas_Up & Nelis, I agree with the idea that if you are going to do the conversion, you might as well make it as off-road and crash friendly as possible. But after being rear-ended twice by blind Parisien drivers, the brighter and more conspicuous the better as far as I am concerned. If you look at the photo in the post it is noticeable that the indicator on the right is brighter, even in the low quality phone camera. In reality, it looks much brighter to the naked eye.

Which leads me to the next project - a high mount rear brake light, with around 25 high output red LED's that when activated, just scream STOP!