[arh1a]

Yeah it is a shame they don't have any documentation for the electronics. I guess that's to be expected with a budget excavator. I will start with a 10amp fuse and see how it goes.

I don't know anyone but will look into it more. That's a good idea maybe a dimmer might work with a volt meter to get to the 8v range. I did speak to someone in Maplins today but he just seemed to say it was over complicated.

Thanks for all your help I will update how I get on once I've tested a few more things.