Tips: LED lights can be divided into DC LED lights and AC LED lights if they are distinguished from the type of input current. LED Strip lights have AC and DC, many work lights are low-voltage DC, and solar lights are also DC lamps. Many outdoor wall washers are also DC fixtures. Of course, there are more AC lamps. The table lamps and light bulbs we use in our homes, and the street lamps we see on the road are basically all AC.
First, let’s be clear: the wire thickness of direct current (DC) and alternating current (AC) LED lights depends on design requirements, power, and current, not just how they work. But in some cases, DC LED lights may require the use of thicker wires. This is mainly due to the following reasons:
1. Current size: The working current of DC LED lights is usually larger than that of AC LED lights. Because under the same power, the DC voltage is usually lower. To meet the power demand, the current must increase accordingly. Higher currents require thicker wires to minimize resistive losses.
2. Voltage loss: When transmitting electrical energy over long distances, the wires will generate resistance, resulting in voltage loss. Due to the low operating voltage of the DC LED lamp, in order to ensure that the remote LED lamp obtains sufficient voltage, it may be necessary to use thicker wires to reduce resistance loss.
If the wire used is not thick enough, the following consequences may occur:
1. Increased line loss: Too thin wires will increase the resistance of the line, resulting in more power loss during transmission and reducing system efficiency.
2. Voltage drop: Due to the increase in line loss, the remote LED light may not get enough voltage, resulting in reduced brightness or malfunction.
3. Serious heating: Due to the high resistance of the line, more heat will be generated when the current passes through, which may cause the wire to overheat, fuse, or catch fire.
4. Shortened equipment life: Unstable power supply may shorten the life of LED lights, thereby increasing maintenance and replacement costs.
Therefore, when designing and installing a DC or AC LED lighting system, the appropriate wire specification should be selected according to actual needs, power, and current to ensure the safe and efficient operation of the system.
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