Energy-saving effect of LED lamps
The LED energy-saving lamp adopts solid cold light source with a service life of more than 50,000 hours. It has high brightness, long life, energy saving, environmental protection, safety, pure DC work without flicker to protect the eyes, does not contain harmful substances, can be fully recycled, and has a wide range of applications Etc. With the deepening of national energy-saving emission reduction policies and the delisting of incandescent lamps, LED energy-saving lamps may become the first choice of residents.
In the Xibaipo Museum exhibition hall, most of the exhibition halls have been replaced with LED energy-saving lamps. Compared with one of the exhibition halls using fluorescent tube energy-saving lamps, the exhibition hall where the LED energy-saving lamps has been replaced is significantly brighter. According to the director of the exhibition, Sun Jincai, at the beginning, he replaced the fluorescent tube energy-saving lamps in an exhibition hall with Longquan LED energy-saving lamps. With the same brightness, by the end of the month, the exhibition halls using LED energy-saving lamps saved significantly. “Now most of the exhibition halls have been replaced with LED energy-saving lamps, and the electricity consumption has been reduced from the original 3,000 kWh to 1,000 kWh.” Curator Sun said that using this LED energy-saving lamp saves two-thirds of the electricity in the exhibition hall. "This kind of lamp generates less heat and has a much lower power than other lamps with the same brightness. The load on the power line is small, which reduces the risk of fire."
On January 5, Sister Zhang, who lives in Qiaodong District, Shijiazhuang City, Hebei Province, went to pay the electricity bill. She was told that her own household electricity in the second half of last year totaled 2,200 kWh, which exceeded the first level of 1080 kWh. Therefore, the excess electricity fee of 1120 kWh was exceeded. Need to increase by 0.05 yuan per degree on the basis of the first gear. Sister Zhang calculated an account. If you buy electricity at the first-tier price (0.52 yuan/kWh), the electricity bill should be 1144 yuan (2200 kWh×0.52 yuan/kWh) in the second half of last year, but calculated according to the stepped electricity, the first 1080 kWh The electricity charge is 561.6 yuan, and the excess 1120 kilowatt-hours will be purchased at the second level of electricity price (0.57 yuan/kWh), which requires a fee of 638.4 yuan (1120 kWh × 0.57 yuan/kWh), and a total of 1200 yuan is required. "After half a year, I have to pay 56 yuan more!"
As a new type of light source, LED energy-saving lamp is a semiconductor device that can directly convert electrical energy into light energy, with an electro-optical conversion efficiency of more than 90%. LED does not need filament heating, and consumes the least electric energy under the condition of producing the same brightness. The electric power consumption is one-tenth of that of incandescent lamps and one-fourth of that of fluorescent tube lamps.
