Lights on a moving vehicle

[Duncan Grimmond]

I've just fitted some miniature(25mm dia.) flashing high density LED lights on a retractable boom on my bicycle because I'm sick (and scared) of motorists coming so close at high speed on the village high street. eBay £2.99 each free post. Boom made out of ali tubing from an old TV antenna.
Three settings of slow, fast flash or continuous. They run on a couple of watch batteries using minimal power on continuous (I gather).
A pair of these as outrigger lights on the ends of your rear bumper might help in giving a rear aspect to following drivers...