I did spend 8 years in the UK ( ) but "m8" escaped me...ever got the feeling you're not with your time..
The PIAA 1100X Platinum driving light came from http://www.truckcustomizers.com/category/-HM-CM/1-5-80.html, those where the cheapest I found but they're available from many more places. They came with a harness including relay, fuse and switch (which I installed inside the hand protector).