Apologies if this is an old topic, but I couldn't find anything relavent anywhere...
I've just moved my three 100watt Hella 220 jumbo's off the front and out of the way of all the rubbish and stuff and mounted them on the roofrack.
They operate via a 30 amp relay and worked fine on the front of the truck. Moving them up onto the roof, however, is a different matter!
After finishing all the mounting, I simply extended the feeder connections from the relay to the lights as it was before, but with a longer run of cable.
OK, that's my first mistake! The second mistake was checking that they worked!
The longer run of wire was not happy and promptly melted.
What cable should I be using for a distance of approx 3 metres?