Listed External Power Supply = also known as wall-wart, cord & brick, direct plug-in transformer, etc.
If your product is powered by a UL Listed power supply, do you need to get the overall product UL Listed? Unfortunately, this question cannot be answered with a simple yes/no. Should it be Listed? Probably, especially if you don’t want to find out the hard way that you should have had it Listed. But, only you can decide if it “must” be Listed. Consider the following:
The choice is yours – but hazards do exist - do you want to take the risk?
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