Hot Selling Ad16-22ds Signal Light Aperture 22mm Indicator Light

The rated working voltage of the indicator light is 220110, 48, 36, 24, 12, 6, 3 V, etc. Due to the limitation of the current level in the control circuit, and in order to extend the service life of the bulb, it is often adopted to add a current limiting resistor in front of the bulb or use two bulbs in series to reduce the working voltage.

A button switch for home lighting often has an indicator light on it. The resistance of this type of indicator light is extremely high, causing the current in the circuit to be extremely low, resulting in the voltage of the electrical appliance not reaching the rated voltage at night and not being able to light up. Generally, this type of indicator light has a capacitor inside because a small indicator light cannot accommodate a voltage of 220V.