Is it possible to add standlight functionality to an E6?

Not another light, but just a little gadget (w/ capacitors in it i guess?) that stores up energy and then releases it when you come to a stop. Someone told me you can buy such a thing and just splice it in - where to get such a widget?

I found this thread (http://bikeforums.net/showthread.php?t=364502&highlight=standlight) about making your own standlight, but it seems a little different than what I want.

Thx in advance!

There is no way to have one built in the E-6. You could follow the thread shown above, but as far as I'm concerned, I use the Planet Bike 1/2 W Blaze with electrical tape to seal the opening.

Advantages :
– priced slightly above 15 $
– wired independently from the E-6, so you can use it as a backup or repair light
– also has a flashing mode, which I find most useful in business districts or in the fog.