Decorative or Period Luminaires Skykeepers skykeepers.org
has generated the most controversy and will continue to generate
among dark sky advocates, city officials and lighting designers, we
more discussion here than in other categories.
IDA recommended lighting fixtures, we
would not recommend these for anything except for historical areas, and
then only when there are strong reasons for the choice.
they are to be used, they should be
used with the minimum amount of lumens possible, and be thought of as
Hence they look as good at night as in the day. With too much
no one can see the fixture at night anyway. The problem is trying
to do two things with one fixture: historical look and street
The needs are different and should be met by different schemes.
they must be used, then the following examples are much better choices
than many others that exist, for they at least do some control of the
output. If design and fixture selection are not carefully done,
glare, light trespass, and energy waste may well be maximized, rather
enhancing ambiance and visibility.
is essential to understand that there
are products available to address the issues of glare, light
uplight, light pollution, energy waste and still provide historic
As so often happens in historical areas or even in older parts of
and towns, old fixtures are retrofitted with much higher light output
(runing the ambiance) or new fixtures are selected with no
for optical performance.
fixtures should be confined to CIE Zone E4: Areas of high ambient
brightness. Normally these are urban areas having both
and commercial use and experiencing high levels of night time activity.
additional information, is available
some notes on cutoff classification had been removed from this section.
This list is in
alphabetical order with fixtures manufactured in California listed as
All fixtures listed here are considered to be fully shielded or full
Only High Pressure Sodium (HPS) Lamps are listed refer to catalog for
other lamp types.
Only High Pressure Sodium (HPS) Lamps or Induction Lamps should be used
in this type of fixture.