(Slightly OT) The description in the link is true! I read in Newsweek a while back that Lumiled joined in the development effort for Luxeon LED-based (charged by solar panels) lamps for Amish buggies for better night-time safety. Supposedly since the system is completely self-contained (no generators needed) it also meets the cultural(?) requirements of the Amish.
I will be interested when Lumileds uses their new third generation luxeon LED's for this. I just got an email from them that said that there new LED produces 80 lumens at 1000ma. Pretty impressive.
Those marker lights consist of several Nichia 5 mm LEDs. They're really a little to blue in color. A couple of 1W Luxeons would make a good whiter marker.
I have seen the 5W Lumiled used as DRL on a few motorcycles recently.
These LEDs are slightly bluer than HID, 6-7000K and are highly visible from great distances, even during the day time.
I'm running three of them on the front of my boat as headlamps for night riding in the ocean. They are the perfect light source for illuminating any white surface ahead, like lobster trap markers, reflective bouy markers and other boats. I have also used them as city lights on the car and I'm in the middle of creating an over head interior lighting assembly that'll use 8, 5W LEDs mounted at the end various lenghts of 5mm aluminum tubes. Cool looking, if you into modern designs.
