Studies have shown that : LED lamps highest price

　　Currently, the phasing out of incandescent light is facing the situation , energy-saving lamps become the mainstream in the market. Researchers saw a large supermarket , energy-saving lamps to become the flagship product , the rise of the new LED lights are difficult to buy , while incandescent been hard to find. The exterior lamps and energy saving lamps of different shapes , LED light bulbs are also spherical , similar to incandescent lamps. But the packaging label display , LED lamp power is far lower than ordinary incandescent lamps.

　　The researchers selected incandescent, energy saving lamps and LED lights make the following tests. Wherein the incandescent lamp is rated at 40 watts, energy-saving lamp power 8 W , which corresponds to a nominal 40 watt incandescent lamp brightness , and the LED lamp is rated 5 watts nominal brightness equivalent to 40 watts incandescent lamps.

　　In a dark room , the researchers these three are respectively connected to the lamp 220 volt lamp, the current measured by the ammeter to measure the actual lamp power ; the same time , the three bulbs of the lamp box is placed at a distance of 30 cm , a fixed amount of exposure with a camera shot of the box reflective case , in order to distinguish the three bulbs intuitive feelings .

　　Through the current test , real power will soon come to the three bulbs . An incandescent lamp current is about 0.18 , the measured power about 40 watts ; saving lamp current is about 0.035 Ann, measured about 7.7 watts of power ; LED lights approximately 0.021 Ann, measured about 4.6 watts of power . From the point of view of these data , the highest measured power incandescent lamp is the most power-hungry .

　　Well, actually three bulbs lighting effects and how? Researchers at 200 ISO , 5.6 aperture, exposure Combination 1 / 30 shutter took a group photo, record the different light bulbs box reflective case . Photo display , LED bulbs although only 5 watts nominal power , but its maximum brightness . Incandescent brightness slightly lower, although sporadic yellow looks very bright , but it feels relatively soft. Energy-saving lamps shaped lamp shape back , bigger emitting area , but white color , look and slightly harsh when .

　　Just from the price point of view , to buy a LED light , the equivalent of buying a 16 incandescent, buy an energy-saving lamps , then spent nine incandescent equivalent price . Buy LED lights clearly not as cost-effective energy-saving lamps and incandescent lamps . But count the power consumption and lamp life and other factors in order to LED lighting life of 15,000 hours , equivalent to 15 incandescent or energy-saving lamps and 3 . On power consumption, consuming 600 kWh incandescent , energy saving lamps to 115.5 degrees, while the LED lights only 69 degrees.

　　According to 0.48 CNY per kilowatt basis, the use of 15,000 hours , electricity generated using incandescent 333 million energy-saving lamps to 139.44 CNY , while the LED light is only 82.92 CNY . If long-term use , or the most cost-effective LED lights and lighting works best.