[quote=Richard Wood [/quote]

this is exactly the one i am talking about just before, normally they are used in truck (24V) and some camping car , in the past bosh have a stronger one but it look like they have stop it, such car lighter for the best should be use after contact but with a strong relay so doing like this you don't fear any trouble, the more trouble in the era of today is find the socket for the relay only in truck & camping car field you can find such little jewels ...