By Chris Johnston
Rebecca Woodcock
Karl Weintraub
Brittany Arnold
Introduction
 Our group has examined different light bulbs and have
determined which will be best for anyone to use.
•
Project Overview
 Different light bulbs have been examined to see which
one is more cost efficient, safer for the environment,
and which one last longer.
10/1/07
Start
research
11/1/07
Experiment
results
10/17/07
Initial
Proposal
due
•
12/01/07
start
final
report
12/5/07
Project
Due
Project Overview (continued)
Incandescent Bulb
Compact Fluorescent Light
Electronic Ballast Tube
Community Aspect
 Our group has examined which light bulbs are more
affordable, safer to use and safer for the environment.
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Course content objectives
Inform the general population ( i. e. classmates,
citizens) about different light bulbs in order that they
can make good decisions about which light bulbs are
the best to use.
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Methods
 Created a plan
 Researched for information
 Interviewed community contacts
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Technology to Use
 We have used various resources including the internet
and certain books and periodicals in the library that
related to light bulbs.
 Internet
 Power point
 Word
 Publisher
 Sketch up
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Community Contacts
 Robert Kitterman
 Jim Lay and Bill Downing
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Skills to develop
 Technology skills
 Power point
 Publisher
 Sketch up
 Group skills
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CFLs VS. Incandescent
CFLs
 They produce about 75 percent  CFLs emit the same amount of
less heat, so they're safer to
light as incandescent bulbs but
operate and can cut energy
use 75-80% less electricity
costs associated with home
 If the incandescent light bulbs
cooling.
are banned, it would eliminate
 A single CFL will prevent 10
the need to build 80 coal-fired
convention bulbs from being
power plants, prevent about
produced, transported, and
158 million tons of carbon
discarded in a landfill; 220 lbs. dioxide annually and save
of coal from being burned; and consumers $18 billion a year
450 lbs. of greenhouse gasses
in electric costs.
from reaching •the air.
CFLs VS. Incandescent
Incandescent
 Approximately 90%-95%
 Incandescent bulbs currently
of the power consumed by
an incandescent light bulb
is emitted as heat, rather
than as visible light.
 Standard light bulbs will
lose up to 45% of their
light output with use.
However, you continue to
pay for the full wattage of
the bulb!
consume 42 percent of the
electricity generated in the
United States, but only
provide 12 percent of the
country's artificial light.
 There is enough mercury in a
single fluorescent tube to
contaminate up to 30,000
liters of water beyond a safe
standard for drinking.
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What are the benefits of using
CFLs?
 If you switch your light bulbs at home, you will save
money and energy. If 20% of the United States
population changed 5 light bulbs, here is what would
happen:
Dollars Saved Each Year in
Electricity Bills ($):
Air Pollution Reduction (lbs of
CO2):
Air Pollution Reduction
Equivalence (number of cars
removed from the road for a
year):
Air Pollution Reduction
Equivalence (acres of forest):
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3,431,969,348
46,695,680,892
4,039,419
6,367,882
What is NWACC doing?
 NWACC is planning to switch from T12 to T8.
 The existing 4-lamp fixtures with 40w costs 49.28 per
year for only one fixture.
 The new t8 4-lamp fixtures with 32w cost 30.52 per
year for only one fixture
 NWACC will also save $18.76 a year for one fixture.
 T8 fixtures will also provide better color rendering and
quieter lamp/ballast operation.
•
Why should every one switch to
CFLs?
 Compact Fluorescent light bulbs last 8 to 12 times longer
than a conventional bulb.
 An ENERGY STAR-qualified Compact Fluorescent light
bulb can save an average of $30 or more in electricity costs
over its lifetime
 ENERGY STAR-qualified bulbs and fixtures produce about
70% less heat, so they're safer to operate and can cut energy
costs associated with home cooling
 A single CFL will prevent 10 convention bulbs from being
produced, transported, and discarded in a landfill
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The proper way to dispose of
light bulbs
There is a small amount of mercury in compact fluorescent light bulbs so it is
important to dispose of them properly.
1. SWEEP UP, DO NOT VACUUM, ALL THE GLASS PARTICLES
2. PLACE BROKEN PIECES IN A SEALED PLASTIC BAG
3. WIPE THE ARE WITH A DAMP PAPER TOWEL OR STICKY
TAPE TO PICK UP ANY STRAY PIECES OF GLASS OR FINE
PARTICLES. PUT THE TOWEL OR TAPE IN THE PLASTIC BAG
4. OPEN WINDOWS TO ALLOW THE ROOM TO VENTILATE
FOR ABOUT 15-30 MINUTES
5. WASH YOUR HANDS AFTER CLEANING UP THE GLASS
•CFL RECYCLING OPTIONS VARY
ACROSS THE COUNTRY.
•WAL-MART HAS KIOSKS FOR
SPENT CFLS IN CALIFORNIA
STORES.
•THE U.S. POSTAL SERVICE IS
CONSIDERING A PROGRAM
WITH RECYCLING CONTAINERS
AT THEIR STATIONS.
•IN 2005, TRUE VALUE
HARDWARE STORES IN
VERMONT BEGAN TAKING BACK
CUSTOMERS’ BULBS AND
SHIPPING THEM BACK TO
WAREHOUSES ON
MERCHANDISE DELIVERING
TRUCKS.
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References
 http://www.walmartstores.com/GlobalWMStoresWeb
/navigate.do?catg=685
 http://www.bbventures.com/acu/lightbulbfacts.html
 http://en.wikipedia.org/wiki/Compact_fluorescent_la
mp
 www.asimpleswitch.com
 http://onebillionbulbs.com/Stats/Country/US
 http://www.utopiawaste.co.uk/content/fluorescenttube-recycling.aspx
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References (continued)
 http://www.csmonitor.com/2007/1004/p04s01-
wogi.html
 http://www.csmonitor.com/2007/0314/p02s02usgn.html
 www.cus.net/electricity
 http://www.bethel.edu/~kisrob/CampusEnvironment/
lighting/lightbulb.html
 http://www.samsclub.com/shopping/navigate.do?catg
=7316
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