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Intro to Sustainability
Step 3: Install CFL bulbs
Compact Fluorescent Light (CFL) bulbs give out mostly light and very little heat. CFL bulbs use 70% less energy and last 10 times longer than regular light bulbs. Depending on the size of the bulb, CFLs can save $30-$100 over their lifespan.
Step 3.1: Check with your utility for rebates on replacing existing bulbs with CFL.
Step 3.2: Buy Energy Star CFL bulbs.
Step 3.3: Start by replacing one bulb with CFL.
Step 3.4: Purchase a CFL bulb (with Energy Star label) whose wattage is one-quarter of the existing bulb you want to replace. For example, a 15-watt range CFL bulb replaces a 60-watt incandescent bulb. CFL bulbs cost as low as $1.50. Click here to view the Energy Star guidelines on CFLs.
Step 3.5: Try out the CFL bulb for its light color. Bulbs that are labeled “soft” or “warm” white give the soothing yellowish glow usually associated with incandescent lighting. Those labeled “cool” white (3200K-4000K) give out a bright white light, while “daylight” bulbs (400K+) produce the harsh bluish tones.
Step 3.5: For dimmer-controlled lighting fixture, read the package carefully. Look for three-way CFL bulbs. Most CFLs do not work with dimmers.
Step 3.6: CFL bulbs contain tiny amounts of mercury. Carefully recycle them. Read the EPA guidelines on CFL recycling.