Your Guide to Energy-Efficient Light Bulbs

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Cut energy costs by choosing the right eco-friendly light bulb for your home.
Photo By K. Latham/Courtesy Flickr (
Compact Fluorescents (CFL) Cold Cathode Bulbs Light-Emitting Diodes (LEDs)
Details • Create light by warming a gas
inside the tubes
• Use 75 percent less electricity
and last 10 times longer than
incandescent (if Energy Star
• Come in many shapes, sizes
and wattages, including
dimmers and three-way bulbs
• Contain tiny amounts of
mercury; require hazardous
waste disposal
• A CFL that operates at room
temperature and lasts up to
twice as long as a regular CFL
• Dimmable; turn on instantly
• Come in variety of shapes,
sizes and wattage
• Fit in standard light socket
• Contain tiny amounts of
mercury; require hazardous
waste disposal
• Bright-white, focused beam
is ideal for recessed lighting,
desk lamps, spotlights.
• New designs offer
more dispersed light
(60-degree angle).
• Are 10 times more efficient
than incandescents; three
times more than CFLs
• Give off little heat; fit into
standard light sockets
• Contain no mercury
Light 18-watt (Energy Star) 8-watt EcoLED 7-watt
Replaces 75-watt bulb 45-watt bulb 75-watt bulb
Estimated cost $3 to $9 each $8 to $14 each $80 each
Lifespan 6,000 to 10,000 hours 18,000 to 25,000 hours 50,000 hours
Electricity savings over lifespan $30 $40 $350
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1000 Bulbs



C. Crane

The LED Light

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