MW 12V Table / Benchtop power supply with a cigarette lighter / car socket output. This can supply 5A maximum.

It has a handy carry handle and the cable winds up at the back.

This is a unit which is reassuringly heavy (over 3KG) and also rare - only found one other for sale (in the USA)

Seldom used ( probably 1-5 times max).

Thanks for looking