indoor lighting design
When designing indoor lighting for energy efficiency, you want to consider
some basic design principles and methods.
Energy-efficient lighting design principles include the following:
- Remember that more light is not necessarily better. Human visual
performance depends on light quality as well as quantity.
- Match the amount and quality of light to the performed function.
- Install task lights where needed and reduce ambient light elsewhere.
- Use energy-efficient lighting
- Maximize the use of daylighting.
Here are some basic methods for achieving energy-efficient indoor lighting:
- Install fluorescent light
fixtures for all ceiling- and wall-mounted fixtures that will be
on for more than 2 hours each day. These often include the fixtures
in the kitchen and living room, and sometimes those in bathrooms, halls,
bedrooms, and other higher-demand locations.
- Install dedicated compact fluorescent fixtures, rather than compact
fluorescent lamps (CFLs) in incandescent fixtures, so that fluorescent
bulbs continue to be used for the life of the house.
- Use CFLs in portable lighting fixtures that are operated for more
than 2 hours a day.
- Use ENERGY STAR labeled lighting fixtures.
- Use occupancy sensors
for automatically turning on and off your lights as needed.
- Consider light wall colors to minimize the need for artificial lighting.
- If recessed lights are used in a ceiling with an unconditioned space
above it, use only Underwriters Laboratory (UL) approved fixtures that
are airtight, are IC (insulation contact) rated, and meet ASTM E283