homemade lamp with heavy acid battery and lr9 or lr 6sp spotlight with handle and pushbutton switch there wasnt a car in the valleys with a lr spotlight left on it lol. these spotlights gave a really good long tight beam .can remember taping a pot around some spotlights to bring the beam in tighter ,.didnt half ruin some clothes with that setup .i can remember buying my first ever genuine barbour coat and the acid rotting it after a few weeks the mrs went spare has she had saved for ages to buy it for me . oh for the good old days .