I hear what you say about a qualified electrician but in my experience, whether is plumbing, electrical work, auto repair, framing painting, pool automation, etc, ... figuring it out and doing it myself almost always nets a much better and more safe end result.
Thanks
I'm afraid I have to disagree with you there on inclusion of electrical.
Just wondering if you read all the detail on what class 2 signifies as I did not see any mention of galvanic isolation as you claim.