🚀 go-pugleaf

In article <1992Nov17.210740.1216@adobe.com> pngai@adobe.com (Phil Ngai) writes:
>In article <1992Nov16.164101.20150@bnr.ca> mwandel@bnr.ca (Markus Wandel) writes:
>>What about photographic floodlights?  These things have expected lifetimes
>>of just 2-8 hours.  I thought if I ever use the lamps and bulbs that I have
>
>Why would you want to use those when you can now get 1.5 kilowatt
>halogen floodlights?

Because they produce slightly bluer light (3400'K instead of 3200' or 2800'),
and they produce a much more diffuse light.  Halogen lamps can be modelled
pretty much as point sources, but the photofloods (especially with a large
reflector) are much more diffuse.

The reason for the short life on photofloods (and halogens intended for
photographic use) is that they run hotter, to get a higher color temperature.
Long life and industrial bulbs run cooler than standard bulbs (and often
have a temperature even below 2800'K).
--scott