Automatic light control lighting circuit one b

The automatic light control lighting circuit can automatically turn on the lighting when it gets dark and
automatically turn off the lighting when it gets bright.
(1) One of the automatic light-controlled lighting
circuits     . The circuit is shown in Figure 2-86. Both circuits use bidirectional thyristors
and are simple circuits. For Figure 2-86(a). If the light does not light up when the photoresistor RG is not
illuminated, the capacity of the capacitor C should be increased. The shortcoming of this circuit is that
it flickers before automatically turning the lights on or off every time. For Figure 2-86 (b), adjust the potentiometer RP to change the light brightness. This circuit can be used as a night light
.