Re:Shocked by online comments, reporter writes profile of hi...
by akadruid on Tuesday October 05, 2010 @09:48AM
(#1759650)
Flashing LEDs on bicycles are legal, as of October 2005, providing they are of a sufficent intensity. The actual law (The Road Vehicles Lighting (Amendment) Regulations 2005) can be read online here: http://www.legislation.gov.uk/uksi/2005/2559/contents/made
In the UK I don't think flashing lights are allowed on moving vehicles/cycles unless they're emergency vehicles or otherwise hazardous. Lots of cyclists still use them though.