I have just purchased a small LED torch. It is only a small one and uses
only one AA battery, but it is amazingly bright. If I had a larger one
(using C batteries) I'd be confident taking it spotlighting. They also
promise longer battery life for this type of torch. However I have only seen
small LED torches, does anyone know if larger sizes are currently available?
And does anyone know about the effect of LED light on nocturnal bird or
mammal eyes" My little torch is dazzling, it has a bright white light, like
a fluorescent, only brighter, not like the yellow light of incandescent
bulbs. Presumably the effect of LED light on night creatures eyes would be
the same or worse than convential spotlights, does anyone know? And how do
you measure the brightness, not by wattage?
--
John Leonard
Canberra
Australia
www.jleonard.net
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