Fluorescent lamps are also commonly used lamps with energy-saving function. For example, fluorescent lamps are generally used for classroom lighting. It has the characteristics of high luminous efficiency, soft light, long life and low power consumption. 14 watt energy-saving fluorescent lamp is equivalent to the brightness of 75 watt incandescent lamp, so replacing incandescent lamp with fluorescent lamp can greatly reduce power consumption. Under the same power, the traditional daily turning off the lights and thin tubes are more energy-saving. The most commonly used fluorescent lamp is generally 40 watts, and the brightness of the thin tube is about 1.5 times that of the thick tube. Where three thick tubes are needed, two thin tubes can achieve the same brightness, which is equivalent to one tube saving electricity. If every family uses it for 3 hours every day, it can save 22 kWh per year!

When incandescent lamps and fluorescent tubes are used to 80% of their life, the output beam will be reduced to about 85% of normal, and the lights will be dimmer and dimmer, but the power consumption will be the same as before. Therefore, when the fluorescent lamp tube is used for a period of time, the two ends are black and the brightness is weakened. As long as the lamp tube is rotated by 180 (that is, the two pins at both ends are adjusted in one direction), the service life of the lamp tube can be prolonged and the brightness can be improved.

Reducing the number of switches can effectively prolong the service life of fluorescent tubes, because the peak voltage and current at each switch do great damage to the tubes, which is equivalent to lighting for 3~6 hours, while the service life of ordinary tubes is 5000 hours. At the same time, it should be noted that when the lights are flickering, a new upconverter should be replaced in time.