DIYbanter - View Single Post

In message ,
writes

Nobody can currently get 30 lumens/watt from a white LED, which
is what you get from highest efficiency halogen lamp. Nichia are

Er, but, cycle lamp bulbs aren't halogen bulbs are they? The sort of
bulbs producing comparable light outputs to the LED cycle lamps are
tiny little bulbs which probably don't get to the sort of temperature
(and thus efficiency) of halogen bulbs.

You can certainly buy cycle lamps with what are described as halogen
bulbs - btw, has the law been updated yet to allow cyclists to use
non-filament bulbs?

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dave @ stejonda