When the power supply is turned on first and then the light is connected after, Probably power supply will start up the overload protection, so there will be no output under this situation. Because the peak current in DC side is high, When the power supply detects that the current required in the output side is higher than the maximum value of the output current of the power supply, the power supply is triggered to start up the overload protection.
Therefore, it’s requested to connect products to power supplies firstly, and then power on the power supplies When doing the connection.
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