> Just out of curiosity, how efficient are halogen bulbs? If a higher
> percentage of the energy is converted to light then higher wattage
> doesn't necessarily mean hotter bulb (as in the case for fluorescent
> vs incandescent lighting). Anyone have comparative data? Pat V?
>
> Roland
Not exactly data but: For cars with electrical systems designed for
halogen headlights, there are usually warnings NOT to use conventional
bulbs as replacements. When I asked why, someone who knew said that
halogen bulbs draw less current. Putting a conventional bulb in a
system designed for halogens risks melting wires.
Putting halogen headlights in a car designed for old style lights is no
problem since the electrical system is designed to supply the higher
current.
This does not really address Roland's question about bulb temperature
though. While drawing less current, a halogen bulb is still brighter
and must be radiating more energy.... I don't know! The rest of the
electrical system (switches, wires, etc...) should be ok though
according to this reasoning.
FWIW
Mike
mburdick@unmc.edu
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