The Flameless flare has a magnetic base. Your normal road flare doesn't, so if you put it on the side of the road while you're trying to change a tire, it could get blown around by the wind or passing cars. Great, now the nuclear-powered super sparkler is mobile.
The flameless flare uses an LED light and comes with batteries. You can just toss this guy into your glove compartment and it's ready to go when you need it.
Available from Vat19.com