
8.3 Outdoor Lighting 191
• LED systems can also be a good solution as they have a long lifetime and
the appropriate color temperature can be selected, however, there are still
some issues to consider such as cost, light ux, and efcacy. It is only a
matter of time though before they will fulll all the criteria and nd a
place in outdoor lighting (Figure8.19). Another advantage of LEDs is that
due to thermal management issues they perform better in cold environ-
ments, which is usually the case with outdoor spaces during the night.
• High-pressure xenon lamps can offer high light uxes, good color render-
ing properties, and color temperat