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We are producing LED programmable controler, the power supply is 5VDC. Do we need any certification (UL or similar) for the US market?

SamGibson
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Dean
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    Have you read: https://electronics.stackexchange.com/questions/297060/at-what-level-of-complexity-should-i-consider-ul-listing-my-widget/297085#297085 ? Please make clear what your product involves because your title suggests that the power supply is included (so you do mains in => 5 V DC out) but in the text you act like the 5 V DC needs to be supplied from elsewhere. Having a product that is mains connected or not makes a **huge difference**. – Bimpelrekkie Jul 10 '19 at 10:37
  • A programmable controller will almost certainly contain digital doings at above 9kHz, so will very likely need FCC approval at the least even if it is all SELV. – Dan Mills Jul 10 '19 at 14:01

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