Why does the rainproof power supply of advertising lights get hot?

The air switch tripped shortly after the street light was powered on and the line became hot. The common reasons are:
1. Power line distribution Unevenness causes excessive current in a certain phase.
2. The street light wiring is wrong. Check whether the neutral wire and ground wire are connected incorrectly.
3. The diameter of the wire is too small, and the current carrying capacity of the wire is insufficient, causing heat generation. Recalculate the power supply wire diameter based on the power consumption of all street lights.
4. The power cord connected to the switch has poor contact or switch quality problems, etc.

If the output of the LED waterproof power supply is normal and there is no fault, there are only two possibilities. The first is that the lamp itself is broken, and the second is that the lamp itself is broken. Power supply line failure.

Power input terminal (AC power supply)------junction box------power output terminal (DC power supply)------LED lights in series

In this wiring diagram, the power input is connected to the alternating current (AC) power source, then to the power output through the junction box, and finally to the series connected LED lights through the power output.

When connecting LED lights in series, the positive pole of each LED light is connected to the negative pole of the pre vious LED light, and so on, until the negative pole of the last LED light is connected to the power output. In a series connection, the total current remains the same, while the voltage is divided between each LED light.

If the LED light is connected but does not light up, there may be several reasons:

Power supply problem: Check whether the power supply is working properly and ensure that the output direct current (DC) voltage meets the Voltage requirements for LED lights.

Wiring problem: Check whether the wiring is connected correctly. Make sure the positive lead is connected to the positive lead, the negative lead is connected to the negative lead, and that each LED light is properly connected to the pre vious LED light.

Power supply output voltage mismatch: LED lights have a specific operating voltage range. If the voltage output by the power supply exceeds or is lower than the rated operating voltage range of the LED light, the LED light may not work properly.

Lamp bead failure: The LED lamp bead itself may be faulty. Try to replace a working LED lamp bead to troubleshoot.

Current limiting issue: LED lights require appropriate current limiting to protect their normal operation. If the current is too large or too small, the LED light may not light up or work properly. Make sure the LED light's power supply current matches its current rating.

If the problem still cannot be solved after troubleshooting, it is recommended to consult professionals or suppliers for further support and suggestions.