LED energy-saving lamps are widely used: hospitals are one of the most intensely used buildings in urban buildings. With the increase in the number of patients, the energy consumption and equipment load of the hospital are at full load. According to Figure 1, it can be seen that the energy consumption of the hospital is approximately It accounts for 75% of the total cost, so taking effective measures for the hospital's electricity consumption can effectively reduce the hospital's energy consumption. For a long time, ordinary fluorescent tubes have been used in the hospital. Because of their short life span and frequent replacement, the clinical departments require more repairs and the maintenance personnel have a heavy workload. Based on the replacement of the original fluorescent tubes, our hospital tried to carry out energy-saving renovation work. After investigation, our hospital decided to replace the original fluorescent tubes in the underground parking lot with T8LED energy-saving tubes. Since the implementation of the transformation, the clinical and maintenance departments have responded well. This type of lamp not only reduces power consumption, has good luminous efficiency, but also has a long service life and reduces subsequent maintenance investment. Advantages and applications of LED energy-saving lamps: Compared with traditional fluorescent lamps, T8 LED lamps have higher luminous efficiency, because a higher proportion of the energy consumed is converted into visible light, and less is converted into heat energy and wasted, so The temperature of the T8LED tube of the same luminosity in work is lower than that of the fluorescent lamp. Traditional fluorescent lamps generally can only convert about 10%-20% of the input energy into visible light. T8 lamps with the same luminosity generally only need about 1/3 to 1/2 of the electricity consumed by the former, and the service life is about longer than that of fluorescent lamps. 10 times as much. Although the purchase cost of T8LED lamps is slightly higher than that of fluorescent lamps, it can save more energy and electricity costs. The longer life span also reduces its replacement cost. For hospitals, it can also save the maintenance cost of replacing the lamp.