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How many joules are saved by a energy efficient light bulb?

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2012-11-13 16:39:06
2012-11-13 16:39:06

there are 100 joules in an energy efficient light bulb 75 joules go towards the light and 25 joules go towards the heat

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No. It is not possible to save light. However light energy can be converted and saved.


An LED last approximately 20 times that of a normal incandescent lightbulb. Between its extended lifespan and the fact that because of it you don't need as many the energy saved is a lot. Also, LED lights are over 4x as efficient as traditional bulbs.



coal and petrolcan be saved by efficient usage of them .


LED lights are cool lights. More light is produced per watt in an LED light, verses an incandescent light. Even more energy can be saved if the light is solar.


Light cannot be saved.


If we use energy saving light bulbs then energy will be saved and thus help the conservation of energy sources used to generate electricity like coal, petroleum, etc.For more information, please see the answers to the Related Questions shown below.


Energy can be efficiently saved by being less dependent on secondary sources for communicating and commuting. Use sun light and prefer to walk, it keeps you fit.


The energy saved by recycling one aluminum can is the equivalent to running a TV for four hours.


Saved by the Light - 1995 TV was released on: USA: 12 December 1995


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You an help by not using a lot of energy.


By removing the power source if you are not using it


Yes they do, and that saved energy can be sold to the power company.


Lets put it this way. In one year, you will have saved about as much money (with solar panels) as the solar panels costed


Solar energy is very expensive to manufacture and distribute, so not much money can be saved by using solar energy instead of fossil fuels.


The pros are you save regular energy and use what you have saved up that day. Cons: If the sun hasn't shown that day your kinda out of luck because then you wouldn't have been able to save any up.


-an advantage of a light sensor is that energy is being saved by the lights in whatever situation because they will only turn on when light is sensed. -a disadvantage is that most sensors need an interface to convert analogue signals into the digital signals that a computer can understand.


-an advantage of a light sensor is that energy is being saved by the lights in whatever situation because they will only turn on when light is sensed. -a disadvantage is that most sensors need an interface to convert analogue signals into the digital signals that a computer can understand.


Conserving energy is used to eliminate shortage. Saved energy can be used later.



Up to 95% of the energy of producing a new pop can be saved by recycling an old one, that's enough to power your PC for 5 hours.


Energy saving is the most important measure that everyone should implement in daily life. saving energy make us to save money. The energy which is saved today is produced tomorrow in same quantity or more. To save energy the best alternative source is non-conventional sources of energy.The main theme of success is when your signature becomes your autograph.similarly the success in saving energy is received when everyone in this universe thinks about reducing the consumption of energy in his/her daily activities.If this is made then i am definitely sure that the use of energy will be made more efficient as there will no wastage of energy. Moreover the present development will not be stopped and at the same time the energy will be conserved for future development i.e sustainable development is achieved. __ BY SHWETA .S. JAIN


Definitely yes! I have been using LED light bulbs for quite some time already. I just love it for its energy efficiency. I have saved a lot through the years because I don't need to change light bulbs every now and then.


Yes if it is used to charge a battery.



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