As a revolutionary environmentally-friendly and energy-saving lamp, LED energy-saving lamps have changed the pollution problem of heavy metal toxins in the past, and the service life is longer. It has become the next-generation mainstream lighting products, but due to the high price, few people are currently interested. We can see that at the same power, that is, when the wattage is the same, the energy-saving lamps are brighter than the ordinary energy-saving lamps. In theory, the life of an ordinary energy-saving lamp is about 5,000 hours, while the life of an indoor LED lamp can reach 50,000 hours. In theory, it can last up to 27 years with 5 hours of electricity per day. Under the premise of normal wear and illuminating effects, a common energy-saving straight tube fluorescent lamp (15W) and an LED lamp (9W) equivalent to its illuminating effect can be selected for comparison. At present, the price of an ordinary energy-saving lamp is about 50 yuan, and the price of an LED lamp is 200 yuan. Calculated with 50,000 hours of working time and Harbin residents' electricity (0.51 yuan / kWh), the electricity cost of ordinary energy-saving lamps is 382.5 yuan, that is (15 watts × 50,000 hours) / 1000 × 0.51 yuan = 382.5; It is 229.5 yuan, that is (9 watts × 50,000 hours) / 1000 × 0.51 yuan = 229.5. However, under the 50,000-hour test, the ordinary energy-saving lamps need to be replaced with 10 lamps. Assume that a 50-yuan ordinary energy-saving lamp includes a lighting fee of 25 yuan and a lamp cost of 25 yuan, then the cost of igniting 50,000 hours is 275 yuan (25 yuan × 10 tubes + 25 yuan = 275); and 50,000 hours of ignition The LED light only needs 1 ç› and costs about 200 yuan. After igniting 50,000 hours at the same time, the common energy-saving lamps cost a total of 657.5 yuan, and the LED lights are 429.5 yuan. From this point of view, a LED light will save 228 yuan than ordinary energy-saving lamps. The total cost of each room will be doubled. Folding Glass Wall,Collapsible Window Wall,Foldable Glass Partition,Folding Glass Partition Guangzhou MQ Acoustic Materials Co., Ltd , https://www.movablepartitionwall.com