1, energy consumption is different: ordinary lighting will generate a lot of heat energy, and LED fluorescent lamps will convert it into light energy, which will not cause energy waste.
2. Different service life: the service life of ordinary lighting lamps (excluding power supply) is 10000 ~ 20000 hours, while the service life of LED lamps can reach more than 50000 hours (excluding power supply). LED lamps with long service life, stable performance and low environmental protection requirements should be replaced once every 10, which saves electricity and avoids the pain of frequent lamp replacement.
3. The lighting principle is different: the ordinary lamp tube is a fluorescent lamp. Fluorescent lamp luminescence is the high voltage generated at the moment when the ballast is energized, which stimulates the discharge between the two pins inside the lamp tube and excites the phosphor to emit light. The heat generated by this process is very high, and LED luminescence is the luminescence generated by electron migration inside the semiconductor, and the luminescence process does not generate heat.
Personal summary of distance education in schools 1
Fortunately, I participated in the distance education and training of youn