I’m glad I’m not the only one who can be entertained by rotating gears, SRS.

Btw, the light switch for the pond pump worked. It can’t make up for the combination of the kit’s small size panel and battery and the great British weather, etc. but I can now have the pump running sort of sunrise through to sunset on fine summer days.

If, and it’s a big if, I try a larger, more tech project this year, I think it could be setting up a larger solar panel system at the front. I think one 12V 100W panel would do the job (with allowances for our poor winter sunlight hours and not wanting to run things in darkness) and, while not strictly needed, it might be rather nice to have the bits at the front (including windmill but not the main security lights) off grid/stand alone. Well I call it stand alone but I could link it to indoors via wi-fi.