Right, I guessed heat was why the cable entering was a different type, probably failed near the fitting as you suggest. Seller has been great, yes. He has tons of stuff for sale, mostly his father's older video kit, but a fair few lights, mixers etc. I think there are some frenels but they're long and square, not like the arri ones I've seen. Wish I knew more about it as I'm sure there'd be some other good buys.