I have built a prototype with 24V, 2.5 A output. it is powered from an AC computer adaptor which was from an certified manufacturer. when i checked online most of the directives are above 50V. so can u let me know if i need to undergo EMC testing.
yes you do, why? well how can you prove that you
equipment does not cause EMC?
it could be a switching reg/booster that you have designed.
and that could cause interference.
Many years ago, in a previous job, we sold some motorcycle electronic subassemblies (12V powered) for an UK company. They did request EMC testing, but am not aware of the details.