The prawns who know fluorescent lamps or circuits come in!!

This should be perfectly normal for you.

It's normal to have light, but it doesn't flash under normal circumstances. This is caused by the fact that after the current is disconnected, the phosphor is still partially in the excited state and emits light, and after a period of time, the phosphor loses energy due to the emitted light, and finally returns to the ground state and becomes darker.

Because the wiring is not standardized, the live wire does not enter the switch. It doesn't matter much else, but be careful when changing the light tube, and even more so when changing the light stand, it is best to turn off the air switch or even pull the electric switch directly, because the guerrillas may mark the wrong line.

Ordinary fluorescent lamps are mainly composed of lamps, ballasts, starters, and shells, and after the fluorescent light switch is turned off at night, it can also be seen that the light is always shining because of the discharge of the ballast coil. Just a few minutes.

The principle of fluorescent lamps is to excite phosphors with voltage, and then they are in a state of light. After the power is off, there will be some residual static electricity between the electrodes, and these will produce a partially excited state in the phosphor, resulting in a weak light generation. But these usually disappear in a short period of time.

It is possible that the switch is connected to the neutral line, and the phase wire generates induced electricity through the ballast to meet the discharge requirements of the capacitor and the discharge starts instantaneously, so there will be a flickering glimmer.

Change the wire that enters the switch, the line controlled by your current switch is the neutral line, and the line controlled by the switch is replaced by the live wire, and it will be fine.

This phenomenon does not harm lamps, ballasts and other devices.

The fluorescent switch should be connected to the live wire. If you're not in the line of fire, there's going to be some electrons coming through the light, so you're going to see a little bit of light.

Normal, if you don't get used to it, you change it.

Hell, how I've never seen this. If there is, the explanation of the brother above should be somewhat correct.

There's an inductor in there.

It is it that hinders the change of current.

No problem.

How fluorescent lamps work.

The main components of the fluorescent lamp are the ballast and the starter, the ballast is a coil with an iron core, the self-inductance coefficient is very large, the starter is mainly a small neon bubble filled with neon gas, which is equipped with two electrodes, one is a static contact, and the other is a U-shaped moving contact made of two metals with different expansion coefficients.

After the fluorescent lamp is switched on and off, the power supply adds the voltage between the two poles of the starter to discharge the neon gas and emit a glow, and the heat generated by the glow makes the U-shaped moving contact expand and elongate, and is connected with the static contact, so that the filament in the ballast coil and the lamp tube has an electric current through. After the circuit is turned on, the neon gas in the starter stops discharging, the U-shaped piece cools and shrinks, and the two contacts are separated, at this time the circuit will be automatically disconnected, and the ballast current decreases sharply, producing a high self-induced electromotive force, and the two self-induced electromotive forces and the power supply voltage are added together in the same direction to form an instantaneous high voltage, and the gas in the lamp begins to discharge, and finally the fluorescent lamp begins to glow. The last step is to adjust the alternating current by the ballast, and implement the step-down current limiting to ensure the normal operation of the fluorescent lamp.

When an electron is excited, the atom releases a visible photon. Most of the photons emitted by mercury atoms are in the ultraviolet region, and these high-energy photons (ultraviolet light) produce white light between the impact with phosphors. These are relatively simple general points, and there are many more about the luminous principle of fluorescent lamps, which are also a bit complicated for ordinary people, and I hope they can help everyone.