Each component has its own path for current flow. Parallel CircuitĪ parallel circuit is one in which current flows through multiple paths. So, the current still reaches the remaining bulbs even though that one bulb is burnt. In such bulbs, when the filament burns, the shunt may start conducting electricity in place of the filament.
Christmas light string half out series#
Sometimes, the bulbs in string lights wired in series come with a shunt wire. Note: Having a faulty bulb in lights wired in series does not always mean all the bulbs will be affected. If you remove one person from the circle, the circle breaks. This is one way to detect if your lights are wired in series.Ī series circuit is pretty much like people holding hands to form a circle. The same applies when one of the bulbs in the series is unplugged from its socket – the whole strand will go off. Consequently, all the lights on the string will go off. Since the light bulbs in Christmas lights in series are part of the one path through which current passes, any burned-out bulb or loose bulb on the string will disrupt that path and stop the flow of current. In the case of Christmas lights, that one path would include every light bulb on the string. Series CircuitĪ series circuit is one in which electric current flows through just one path. This design makes it easy to alter the length of Christmas lights. The parallel + series configurations involves connecting multiple series strands in parallel.
Parallel configurations and parallel + series configurations are more common these days. But you should find such circuit in lights that use incandescent bulbs. Since both types of circuits offer different advantages, manufacturers opt for either, depending on what benefits they intend to offer their customers.įor good reasons, you will rarely come across string lights wired in series.
The short answer: Christmas lights can be wired in parallel, series, or both (hybrid). Troubleshooting a Faulty Christmas Light StringĪre Christmas Lights in Series or Parallel Circuits?.Why the Circuitry of Your Christmas Light Source is Vital to Fixing It.Are Christmas Lights in Series or Parallel Circuits?.
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