We are a manufacturer of Christmas lights accessories. Let’s share some knowledge about the circuit nature of Christmas lights. There are actually many tricks to stringing seemingly innocent Christmas lights, most of which will not be discovered by home Christmas tree decorators unless it is too late. The colorful lights on the Christmas tree seem to multiply in the box, and they seem to knit their own knots most of the day. The final cruel behavior is the "all or nothing" lighting technique. Depending on the design, if only one bulb burns out or comes out of the socket, the entire string may indeed fail. The reason is related to the nature of the circuit and the Christmas bulbs that rely on the circuit.
There are two basic electrical wiring schemes used to form a series of Christmas lights. There is a scheme called "series", which uses a single-wire connection between the bulbs to light up all the bulbs. The electricity from the household outlet flows down this wire and through the first Christmas tree bulb. When a certain amount of electrons escape, the bulb will glow. The rest of the electricity continues to flow through the wire to the next bulb in the series, and so on, until the string is connected to another string or the current returns to the negative side of the socket.
This series configuration works normally until one of the bulbs burns out or is removed from the socket. At this time, the circuit cannot be completed, and all remaining lights will not emit light. In the series lighting scheme, the only way to restore the circuit is to replace the broken bulb with a known working bulb. However, finding a bad bulb or even a bad bulb in a string of lights is often easier said than done. A known good bulb becomes a tester because each bulb must be replaced individually until the string lights up again. If a new bulb is placed in series in an empty socket, the wire should also light up again.
There is also a second wiring scheme, which can prevent the entire light string from malfunctioning due to one bulb, but it may still malfunction under the correct conditions. In a parallel Christmas light scheme, two wires pass electricity through each bulb. At least in theory, if the filament of one bulb goes out, the rest of the lights should stay on. The second wire ensures that the circuit will not be completely disconnected. The problem with the parallel system is that the Christmas bulb is completely removed from the socket. Unless a special shunt is installed in the socket in parallel to bridge the gap, all the lights may still go out.
If one of the bulbs in the circuit burns out, even the LED string of Christmas lights may malfunction, especially if the string is connected in series instead of parallel. In a last-minute emergency, it is best to keep spare bulbs and check each string of Christmas lights carefully before installing it on the tree or nailing it to the roof outside. Parallel lights may be more expensive than tandem lights, but avoiding the tedious task of tracking a single broken bulb may make the investment worthwhile.
We also have many other festive lightings, such as HALLOWEEN LIGHTS , etc. Welcome to visit our company!