Thanks TP. I'm not sure about fans on these type of lights, but at least these have a fan failure protection mode. I was hoping to find a UK vendor. Some seem to be selling the same item, but usually around £10 dearer.
I have a set with the braided heatsinks and, although very bright and powerful, I'm not very happy with the beam pattern. Too many drivers flashing back at me and main beam doesn't have much penetration - just too much scatter.