Low cost 12v - 24v power supply for SEFAM S.Box

[Kingsway]

I assumed I would have to find and pay through the nose for proprietary dc - dc converter  for my SEFAM S.Box  -

But  I found I had an old 12v to multivoltages, including 24v, stashed away on a shelf - and that it had an adapter plug that fitted the SEFAM perfectly!  - they usually come with a selection of plugs  (I wouldn't want to try using the humidfier, or heated tube though...)

They cost about £10.00  on Ebay!   Search for "car charger for laptop"

[Kingsway]

This is the sort of thing I found works with my Sefam S.Box - but mine is 160w -  6a