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Light the night.
Choose outdoor lights that have a photocell or motion sensor. Lights
with a photocell charge during the day by the sun and will turn on
automatically at night. Motion-sensor lights are activated when someone
or something crosses its "path." Combine them both into one light and
increase your energy savings even more.
Focus on the task. Install task lights to focus
the light where you need it. Halogen or incandescent lights are
especially efficient under kitchen cabinets to illuminate the sink and
countertops, where you need focused bright light. Task lighting can be
an inexpensive way to add ambience.
1, 2, 3. Consider three-way lamps, which make it
easy to adjust the lighting level to exactly what you need. Three-way
light bulbs contain two filaments, which can be used separately or
combined for the brightest light. For example, a 25-50-75 bulb has a
25-watt filament that you can use for subtle ambience while watching TV
and a 50-watt filament for room illumination. Click the bulb to the
highest setting and the two filaments light up to a total 75 watts for
close-up work like reading or knitting.
Go mini. If you use night lights, consider using
4-watt mini fluorescent or electro-luminescent versions, which are up
to four times more efficient than incandescents. A CFL bulb can save
you more than $30 in electricity costs compared to an incandescent lamp
(since it has 10 times the life and uses one-quarter the electricity)
and save 2,000 times its own weight in greenhouse gases. Luminescent
lights use 1 watt or less and are cool to the touch, which is a bonus
if you have little ones who like to get up in the middle of the night.
Clean and bright. Use a soft cloth to keep all the
bulbs in your lamps clean. For fluorescents and recessed lights, use a
clean, damp cloth. You can increase their efficiency by almost 20
percent by keeping the dust off.
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