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By
04/29/2008
"This isn't printed on the packaging or part of their 'advertisements'."
Of course it isn't. If it was, it would cause a few people to be confused and not buy the bulb. The CFL companies want to milk the "green cow" for all it's worth. But you have to know how CFL's work to get the most from them.
"When I was in school a teacher said it was cheaper to leave the classroom lights on all day than to turn them off between classes."
Your teacher was correct. Even though we have CFLs that are "instant start" (they have electronic ballasts) they still use a large amount of energy to start up.
Just remember this: "In 15 minutes honey, we'll start saving money."
By
01/24/2007
this isn't true according to 'a popular science based show on the discovery channel'. when tested they found that to reach its max wattage and then level off was barely a blink of an eye.
Incandescent: 0.36 seconds
CFL: 0.015 seconds
Halogen: .51 seconds
LED: 1.28 seconds
Fluorescent: 23.3 seconds
so in otherwords, it only takes 0.015 seconds for a cfl to max out its startup energy.
By
01/24/2007
This is common knowledge among good electricans but hardly anyone else knows it. I will look for a website which talks about this though.
Don Klipstein is the lighting guru. He knows very much about many types of lights. His web page is: http://members.misty.com/don//light.html
Flourescent lamps are here: http://members.misty.com/don//f-lamp.html
A quote from the above page:
"When the lamp is off, the mercury/gas mixture is non-conductive. When power is first applied, a high voltage (several hundred volts) is needed to initiate the discharge. However, once this takes place, a much lower voltage - usually under 100 V for tubes under 30 watts, 100 to 175 volts for 30 watts or more - is needed to maintain it."
What this means: a lot of energy is required to start the light, but very little is required to keep it lit.
By Lisa from WI (Guest Post)
01/23/2007
When I was in school a teacher said it was cheaper to leave the classroom lights on all day than to turn them off between classes. It is good to know the 'why' behind this. Thank you.
By pam2cats. (Guest Post)
01/23/2007
Ive never heard that either and I would like to know where you got the information. (I double check everything before I "use" it)
By (Guest Post)
01/22/2007
This isn't printed on the packaging or part of their 'advertisements'. Ummm. :)
Thank you for the tip Chuck.
You can actually save money on your power bill by adding more lighting options to a room. One overhead light is often more light than you need while in a room. In a living room, you can save money by using table lamps or a floor lamp with CFL bulbs or by making small pendant lights part of the room's decor.
Task lighting is often all that needed in a kitchen. A pendant light over an island or dining table is much more efficient than having a ceiling light on the entire time you are in the kitchen.
Wall sconces beside of the bed or accent lamps on bedside tables are sufficient for a bedroom. Bathrooms vanities need to be well lit to accommodate your morning routine, but softer lighting such as wall sconces, pendants, small chandeliers, and decorative night lights are sufficient for other times.
Timers and dimmer switches can also help reduce your monthly electric bill.
By VeronicaHB from Asheboro, NC
Shared on: 01/03/2012
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