A 5 watt LED must be quite the light! We just use LED camping head lights for all our night time barn work and I calculated they are less than 1/3 of a watt judging by battery use and are very bright.
Maybe adding a diffuser would help the 5W be more useful. We have switched over to all compact florescent except for the interior stove light and the outdoor lights so it might be a year or two before we can try a LED bulb. Do they have a low temperature rating? Our head lamps seem to do fine at -25C.
Ian
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