How do they make energy-saving lightbulbs save energy?

Answer 1

Compact Fluorescent Lamps (CFLs) use less energy to produce the same amount of lights. All fluorescent lights do this. Regular lights give off light and lot of heat as they use the energy. CFLs use the energy more efficiently and are cool to the touch. That coolness shows that the energy used is being used for light and not wasted as heat.

The life of the lamp has nothing to do with energy use, but is can be part of the economic calculation to justify the extra cost.

Answer 2

Easy. Take a table lamp with a regular bulb that's off and is cool. Touch only the glass part of the bulb. Wrap your hand around the bulb and turn it on. Wait.

Getting the picture? LOL! You can let go. You're paying for that heat when you really wanted light. Now in the summer you're paying twice because you also have to pay for the air conditioning to get rid of the heat! So, incadescent bulbs stink. They also don't last very long.

So it's not that energy saving lightbulbs "save" energy, they just don't ridiculously waste it like incandescents do. They're not hard to beat, lol!

Bless Thomas Edison, he invented a lot of cool stuff, but light bulbs were not his finest hour.

Answer 3

Energy saving? incandescent bulbs are 3% efficient, so-called "energy-efficient" bulbs are 6-7% efficient but LEDs are 85% efficient. Philips, the Dutch electronics group, has started an experimental pilot project to instal LED street lights. Surely the future must lie with these?

Answer 4

Energy saving light-bulbs are really fluorescent tubes coiled to save space.

They save energy in two ways. The energy needed to manufacture them is only slightly more than is needed to make an ordinary light-bulb but they last many times longer, so that saves energy.

Ordinary light-bulbs produce light when electricity is used to heat a filament until it glows white hot, so a lot of energy is wasted as heat. Energy saving light-bulbs produce light when electricity excites molecules of a gas in the tube so as to produce light but very little heat, so that energy is saved.

I hope you are using energy saving light-bulbs because it is an easy way to save rapidly dwindling fossil fuels and to reduce damaging CO2 emissions which cause global warming. We need to do many more things as well but this is a good place to start and saves you money as well (the bulbs cost more but last a lot longer and use less electricity so saving you money quite quickly).

Best wishes

Answer 5

Ordinary light bulbs work by passing electricity through a wire and making it very hot. That makes some light and a lot of heat.

Compact fluorescent light bulbs work by bombarding a gas with high energy electrons. That makes more light and less heat.

So, for the same amount of light, you need a lot less electricity.

A 13 watt compact fluorescent gives as much light as an old fashioned 60 watt bulb.

Answer 6

In a standard incandescent light bulb 90% of the electricity goes to heat up the lightbulb, only 10% goes to giving off light.

In a CFL - 70% goes to light, 30% goes to heat. That bulb will extract less electricity to put off the same amount of light.

Answer 7

They are like a florescent light. Incandescent globes have a filament that heats up and uses more power to keep the filament light. The filament gets old from use then breaks. The filament is a metal and like all metals after repeated heating gets brittle then thins and breaks. The florescent lights have particles inside the globe drawing the light through them that light up using less electrical power less electrical power means less heat, therefore the bulb stays cooler enhancing its life span. Simple explanation is that heat is the enemy of electronics of any kind. This is a simple explanation; in reality it’s a bit more complicated. I hope this helps.

Answer 8

Energy saving light bulbs use less energy than standard bulbs, therefore saving energy.

Answer 9

there's no longer plenty mercury in a lightbulb, yet its no longer secure to respire. ultimately the small quantity will expend yet because of the fact the Clinton administration's expert scientists reported...there isn't any secure point of mercury exposure. Its achieveable, yet a small one. the only subject is that in case you have dozens of CFL bulbs and have a habit of breaking them plenty on your place. LED's will replace CFL's and incandescents as quickly as the fees develop into genuine looking and manufacturers cause them to in bulk. One option to look at: Skylights, or perhaps including a window or 2.

Answer 10

A light bulb is mainly heat which you are paying for. Florescent tubes use a different way to produce light with less heat meaning less electricity "lower cost to you" Energy bulbs are mini florescent tubes to put it simply