Ballast
The ballast is an element connected in series with the fluorescent tube. In fact, it is an inductive coil wound around the core of the silicon steel sheet, and its inductive value is large. The role of the ballast is: 1 to limit the current of the lamp; 2 to generate enough self-induced electromotive force, so that the lamp is easy to discharge and lighten. Ballasts generally have two outlets, but some ballasts have a coil around in order to easily ignite when the voltage is insufficient, so there are also four ballasts.
starter
The starter is a small glow tube with helium in a small glass tube and two electrodes. One of the electrodes is composed of two metals with different linear expansion coefficients (commonly called bimetals). In the cold state, the two electrodes are separated. When heated, the bimetals are bent by heat, so that the two electrodes are automatically closed.
In particular, the traditional fluorescent lamp has no ballast. It only emits light when it is at a large voltage. The voltage in China is 220V sinusoidal voltage. Therefore, the fluorescent lamp is constantly flashing when it is working, but people can't feel it, but The human eye is automatically adjusted to make the eye fatigue. So try not to use fluorescent lamps, but use standard energy-saving lamps. LED fluorescent tube is divided into 18W. One meter two, 0.88 meters and 1.6 meters.
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