Connection requirements for LED power supply

First test the LED lamp's light source solder joints for any potential dangers such as cold solder joints or false solder joints that may affect the normal operation of the lamp.

　　When using a non-isolated LED power supply, please make sure to connect the output terminal first and then the input terminal because the no-load output voltage of the non-isolated LED power supply is higher.

　　To ensure the safety of the LED, please connect the LED first and then turn on the power.

　　Non-isolated power supplies are prohibited from being unloaded or unloaded for a long time.

　　Use within the rated power of the power supply, and pay attention to the matching of the output current and voltage of the LED and the power supply.

　　When assembling the lamp, do not squeeze it too hard to avoid deformation and damage of the components.

　　After the power supply is assembled into the lamp, an aging test of more than 24 hours is required according to the actual situation to ensure the quality of the lamp product.

　　Try to avoid direct contact between the casing of the electrolytic capacitor in the power supply and the casing of the lamp.

　　All power leads must be made of high-temperature wires and avoid being squeezed.

　　Avoid direct contact between exposed leads and metal lamp housing and the driver.

　　The operating ambient temperature must comply with the specifications.

　　II. Abnormal situations and their solutions

　　If the power supply does not light up after the electrical connections are made for the first time, please disconnect the AC input and check:

　　n Check if there is poor contact at the DC output terminal;

　　n Check whether the positive and negative poles of the DC output terminal are connected in reverse.

　　n Check if there is any poor contact at the AC input terminal; test again after eliminating the above faults.

　　After making the electrical connections, the LED lights up, but the LED flickers. Please disconnect the AC input and check the DC output:

　　n Whether there is overload, overload or underload.

　　n The power supply design parameters do not match the actual use parameters.