"Sam Goldwasser" wrote in message
...
writes:

In this new generation bicycle light system, no battery is needed, no
friction on any parts of the bicycle. The lights flash regardless speed
of the bicycle and weather conditions (unlike normal dynamos!). Very
bright.

It can be used as a stand-alone light system (as a normal dynamo) on
your bike, or used as a back-up for your existed battery-powered lights

All details and buy on-line: http://www.freelights.co.uk

Well, you don't get something for nothing. No friction, but there will
be a very small tug each time the magnet passes the coil. Won't be
noticeable or even detectable without test instruments, or make any
difference to the feel of the bike, but it is non-zero.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

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Now for the negative! Technically, as UK law stands at the moment, the use
of an LED light as a sole means of lighting is illegal because the law
specifically states the use of a "filament bulb". Similarly, the law
precludes the display of a flashing light on anything other than emergency
vehicles. The British Standard (BS6102 Pt3) which includes lighting for
bicycles was updated a few years ago to allow LEDs but with certain
stipulations (they must be visible from the same range of directions as a
filament bulb lamp and they must not flash). The law is only just about to
be updated to legalise their use.