Onoff

Surely the help does that?

How about...bath through 90 deg. Shower top left. Pocket door then towel rail nearer the door? Don't really want the towel rail near the pan.....you might burn your knee. Then there's splashback etc 😬

& towel rail between pan and door?

A pocket door would give you more options to play with the space.

All I can offer is traditional relays. Probably with a DIN rail mounting base.

Especially with kids.

When Doves Cry?

I think there's a capacitor in there that stays charged when the light is "off". Also some clever circuitry that lets pulsed power through to keep it charged but not enough to put the light on. Or something like that!

So you just want a relay, with a 230V coil, that'll switch 230V at some amps?

I never did, thought I perhaps could, couldn't and now don't care.

I've a few relays and bases kicking around here. Resistors too.

I made some almond slices last night:

How about granite? How far is @scottishjohn from you?

Is that mouldy silicone btw? Try Forever White.

That'll be the urine seeping out of the grout! Seriously, what have you got behind there, pipework wise? Was it push fit from memory?

I'm amazed you're not making them yourself! Something like this? They make to order: https://www.silverapplewood.co.uk/products/solid-pine-spice-rack-5-tiers-shelves

Somerset isn't too far from you.

https://www.builditsolar.com/Experimental/DIYHRV/DIYHRV.htm

I had a Costa latte earlier, in a Greggs somewhere near Norwich. It wasn't great.

Than my bathroom? True dat.

Bless you my son!

@nod a question if I may: Can you dot and dab moisture resistant plasterboard board onto brick, if so what's the best product?

Amateur.

Make sure you obscure access to the isolators in the cupboard by placing lots of tins and packets in front of them...

Probably best with anything Chinesium, to work on half the given current rating.