I've been curious about these for awhile so I just picked up one off Ebay NIB for $35 in red, SAE Class 1. This little sucker is a blast, weighs almost 2 1/2 lbs, cast aluminum base & thick Lexan dome just like in the torture test video. The instructions say it will run on 9 to 28 volts, so for fun I ran it on my kitchen counter during dinner, using a little 9V radio battery - try that with just about any other rotating beacon. The "motor" is magnetic drive and the light comes with a 5 year warranty.
This would make a great light for a landscaper or anyone who parks all day and needs to leave their beacon running with the engine off. They claim the base is a heatsink to keep the LED's cool enough after all-day operation that it will still meet the SAE intensity spec. My particular model in red draws 1.3 amps at 12 volts, that's low enough to run off a truck battery and not worry about starting up at the end of the day. Can't speak for the amber version or other colors but I'm really impressed with this one, kind of surprised they haven't caught on more.