Turning off the lights and lying on the bed, I was preparing for a beautiful sleep, but I found that the lights on the ceiling were still shining in a flash. What happened? Let's take a look at the reasons for this phenomenon:
First, the switch that controls the fluorescent lamp is caused by the indicator light.
Since this "capacitive" indicator light is constantly charging and discharging, causing the fluorescent lamp to flicker, in this case, remove the switch and remove the indicator light.
Second, the switch is set on the zero line, causing the lamp body to be charged.
The switch is set on the zero line, and the lamp body, the switch and the neutral line become a "capacitance". Due to the charging and discharging phenomenon of the "capacitance", the fluorescent lamp blinks at night. In this case, change the zero and fire lines to make the switch control the fire line.
Third, the electronic ballast type fluorescent lamp and the human body sensor switch are connected in series, although it can be illuminated, but when the switch is turned off, the fluorescent lamp will flash. This is because the switch is not completely turned off for normal operation, and there is a small current to charge the filter capacitor of the electronic ballast. When the voltage of the capacitor reaches the starting voltage of the electronic ballast circuit, the capacitor discharges and the lamp illuminates. After the capacitor charge is discharged, it starts to charge again, and the fluorescent lamp flickers.
First, the switch that controls the fluorescent lamp is caused by the indicator light.
Since this "capacitive" indicator light is constantly charging and discharging, causing the fluorescent lamp to flicker, in this case, remove the switch and remove the indicator light.
Second, the switch is set on the zero line, causing the lamp body to be charged.
The switch is set on the zero line, and the lamp body, the switch and the neutral line become a "capacitance". Due to the charging and discharging phenomenon of the "capacitance", the fluorescent lamp blinks at night. In this case, change the zero and fire lines to make the switch control the fire line.
Third, the electronic ballast type fluorescent lamp and the human body sensor switch are connected in series, although it can be illuminated, but when the switch is turned off, the fluorescent lamp will flash. This is because the switch is not completely turned off for normal operation, and there is a small current to charge the filter capacitor of the electronic ballast. When the voltage of the capacitor reaches the starting voltage of the electronic ballast circuit, the capacitor discharges and the lamp illuminates. After the capacitor charge is discharged, it starts to charge again, and the fluorescent lamp flickers.
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