Energy-efficient lighting starts with the bulbs you use most. You can make a room easier to work or relax in while using less electricity for the same brightness.
Start where the lights stay on longest
List the fixtures you use most, such as the kitchen or a home office. Replace frequently used inefficient bulbs first. Turn lights off when you leave a room and consider a timer or sensor where it suits the space.
Shop by brightness and fit
Compare lumens for brightness and watts for energy use. Choose a color temperature that works for the room. Check the package for dimmer compatibility and whether the bulb is rated for enclosed fixtures or damp locations where applicable.
Try one bulb before replacing a room
Use it at the times you normally use the room and make sure you like the light. Check for flicker on dimmed settings and whether the fixture directs light where it’s needed. Then use the same approach in the next room.
Plan energy-efficient lighting room by room
Take a spare bulb or a photo of its package when you shop. Check the base size, the fixture’s enclosure, and whether it uses a dimmer. If the fixture has more than one bulb, test a replacement before buying a full set. Compare brightness and color at the time of day when you actually use the room.
Make a short bulb list
Write down the bulbs used in your busiest rooms, then note which are suitable for enclosed fixtures, damp areas, or dimmers. Store that list somewhere easy to find when a bulb fails. You can also note which fixtures give you enough light with a single task lamp nearby.
For more detail, see the U.S. Department of Energy’s energy-saving guidance. Also see Energy Conservation Tips for another part of this series.