|This is the case for the world's brightest bicycle taillight. At roughly 2 inches square,
it's brighter than many car headlights. Unlike the ones you see in Walmart, this has to
be made of metal. The power going through it would quickly melt a plastic case. Unlike
most of the parts in this gallery, this is a retail product, currently available for purchase.
You can learn more about it, or purchase one at: