Therefore ,in the same brightness.incandesent is 24.23 times power consuoption of LED.

 A)SERVICE  LIFE:

Ten hours a day by calculating, one incandescent lamp can work for 1800 hours and it can last for 180 days. While the service life of LED lamp is 70000 hours and it can work for 7000 days about 20 years. calculating the price of one 100-watt incandescent  5RMBand the price of one LED lamps  300RMB,you will use 20 bulds for 1000RMB within 10 years. While LED works for the same time only need 300RMB and just one buld. with the choice of LED , you can save 700RMB and much more time in that condition.

 B)OUTPUT POWER:                                                                  

One 100-watt incandescent lamp uses 0.1 point with 0.08RMB charge each hour. While one100-watt LED only uses 0.01 point with 0.008RMB per hour.            

So ,by using LED you can save 0.072RMB each hour and 0.72 each day if it works 10 hours each day.

In this way , you can save 2628RMB within 10 years comparing with the incandescent lamp.

C)FEES OF MAINTAIN:

The working hour of incandescent lamp is between 1800 and 3000 hours. You have to chang it each year with 200RMB each time you do it for handling. You need to pay 200RMB for 10 years.

 700+2628+2000=5328

From the part A,B ,C above we can see that you will save 5328 RMB by using LED within 10 years than that of incandescent lamp.

ECO-FRIENDLY:

There are no violet ray and ultrared in light spectrum ,no heat and radiation , the garbage can be reused and it is eco-friendly without mercury , cold light and teachable , it belongs to classical eco-friendly light.

If ten hours a day by calculation, the life of incandescent is 1800 hours. While the life of LED lamps is 70thousand hours ,7000days(about 20 years). Calculating one 100-watt incandescent 5 RMB,You will use 20 bulds within 10 years with the charge of 1000 RMB. While one 15-watt led lamp 700RMB each one. This can save you 300RMB and much time.

ten hours a day by calculation , the service life of energy-saving lamp is about 1800 hours, 180 days . the service life of LED is 70000 hours, it can work for 7000 days about 20 years . Calculating  the price of the energy-saving lamp 8RMB , we will use forty lamps for 20 years and the fees up to 320RMB. While by using one 5-watt LEDw ith the price of 60RMB each one, you will just pay 60RMB for 20 years without anyother charges. In this way , you will collect 260RMB and much time.

B)OUTPUT POWER:

One40-watt energy-saving lamp uses 0.04 point each hour and you need pay 0.032RMB . While one 13-wattLED lamp uses 0.013 point each hour and you just pay 0.0104RMB.  you can save 0.0216 each hour and 0.216 each day if it works 10 hours a day. In this case , it can save your money for 78.74RMB each year.

 C)ECO-FRIENDLY:

More eco-friendly:there is no harm to your body without violet ray. Shanghai edgelight industry ,LTD is specialized in LED energy-saving lamp, LED spotlight , LED buld ,LED strip,track lamp , LED power supply and so on. They are largely used in business center,office builing,hotel, hospital ,

CHARACTER:

Delivery guarantee: Edgelight is specialized in LED energy-efficient lamps and it has delivery guarantee.

Service life : Edgelight LED energy-efficient lamps have super long service life for 50 thousand hours and the service life is 10 times longer than that of traditional lamps.

Convenient to use : it is easy to install and has large projection angle. Besides, you can move it easily. What is more ,it has the ability of dustproof, antileakage and anticorrosive.