GSite, sorry for delay responding. I went to an auto electrician to buy mine, bought 4 pin 12v 40A micro relays with resistor, normally open type. The originals (on left in pic) are 5 pin but their sockets are only wired for 4 pins, originals are 20A but I chose 40A capacity. Took time to clean up the sockets before fitting. I had been out on really shitty November roads, when home I noticed the LED aux lights I had fitted were glowing dimly due to current leakage, cleaning the relay sockets and fitting new relays and no recurrence of problem. I fitted relays to the 4 wired sockets on my (euro 4) bike.
Steve.