A year to save electricity can fill price difference of lamps and lanterns
Under the condition of price on the high side, whether to buy LED lights "cost-effective"?
"Incandescent and ordinary energy-saving lamps, LED lights on the luminescence principle. Are the main differences between incandescent lamp by tungsten heat emitting, when use only 5% of the electricity used for lighting, all the remaining 95% by heat consumption, the ordinary energy-saving lamps can convert 80% of electrical energy to light energy.
And LED lighting by leds, can be directly put DianZhuan into light, lower power consumption. In theory the LED power consumption is only one over ten of incandescent lamp, is ordinary energy-saving lamps a quarter to a third. "South Beijing ruizhi Liu Lei core microelectronics technology company technical support manager told reporters.
In the 3 w LED lights, for example, according to the market price of 30 yuan), control the brightness of 12 w energy-saving lamps (15 yuan), if the lights are eight hours a day, using leds will save 0.072 KWH, a year to save 26.28 degrees, according to the unit price of 0.48 yuan/degree, can save electricity costs 12.6 yuan, more than a year can be the initial purchase price difference "swallow".
At the same time, the LED energy-saving lamps "serving" than the ordinary for longer periods of time - the most mainstream of philips general energy-saving lamps with the slogan of "life for three years.
LED lights qualified product life generally in more than 10 years or 20 years, by calculation, 10 years LED lights can be sustainable use, while the common energy-saving lamps may have replaced three times or so. Has the advantages of long service life and low energy consumption, for the long-term use of family, the LED energy-saving lamps is more economical than the ordinary.