Luxeons for horse buggies. Very cool.
The Amish are a very interesting people, and their views of technology are usually misunderstood. The Luxeons are a good example. They are much higher tech than a halogen bulb, yet the Amish embrace their use. The Amish don't make decisions on which technology to use based on how modern or technical it is. Instead their decisions are based on how they think a particular technology will affect family and community.