On Fri, 29 Dec 2017 07:54:43 -0000, "Brian Gaff"
wrote:

I think we would need to know more about the load you want to power with
such a device before being committal one way or the other. Lights are one
thing, sensitive electronics and chargers are quite another thing.

Quite. My question was really 'are these Electronic transformers'
really just std SMPSU's but marketed as Electronic Transformers to
cater for electricians who may not know what a SMPSU was?

I think the answers so far suggest they are probably not straight
SMPSU's, as in a laptop PSU and so I'll look elsewhere.

Cheers, T i m