Well, as many of my DIY projects tend to... this has ended in disaster
Anyone doing this project.... DO NOT MOUNT THE CONTROLLERS UNDERNEATH THE LIGHT HOUSING AS ORIGINALLY SUGGESTED...
I finally got chance to change my controller and found that the enclosure was completely soaked.
The connections have corroded and it's falling apart.
Unfortunately my wiring was cut to size to mount in this location so i've decided to remove it all and call it a day.
I don't want to put anyone off as these are fantastic, and if you mount them in the engine bay and use a better waterproof case for them (the supplied one is a bit rubbish) then you will be fine
Jay, i'll be returning the 3 controllers that i now have, 2 of which are working fine, so hopefully i can recoup something from this...?
Oh well.... It was great while it lasted, but i just don't have te time, or probably skill to get it working again.