Any issue with taking power from here for a light?

[Scarletpimpofnel]

The right hand switch is for the economy 7 hot water (so only powered at night). The left hand switch is for "on demand" additional hot water when the other has run out, Is there any issue with adding an FCU to the left hand existing switch to power a light? tia

[netherfield]

I did

[JoshSm]

Nothing particularly wrong, as long as it's obvious. Light in the cupboard?

Only thing you might need to be wary of is circuit protection - you don't really want a 6A rated cable directly hanging off a circuit with a significantly higher rated protection on it like a 15A fuse, 16A breaker or whatever is on that one.

Edited by JoshSm on Monday 29th June 20:11

[Scarletpimpofnel]

JoshSm said:

Nothing particularly wrong, as long as it's obvious. Light in the cupboard?

Only thing you might need to be wary of is circuit protection - you don't really want a 6A rated cable directly hanging off a circuit with a significantly higher rated protection on it like a 15A fuse, 16A breaker or whatever is on that one.

Edited by JoshSm on Monday 29th June 20:11

TY. I was thinking of using 1.5mm cable from that existing switch to a new 3Amp FCU that would have a low power LED light with movement sensor that comes on automatically when someone comes into the cupboard.

[Philvrs]

I’d just go rechargeable, for example:
https://amzn.eu/d/06x2Itkh

[Dave Hedgehog]

Philvrs said:

I d just go rechargeable, for example:
https://amzn.eu/d/06x2Itkh

good idea

i would then swap the switch for a socket and wire a charger into the light so no need to recharge it

[Scarletpimpofnel]

Dave Hedgehog said:

good idea

i would then swap the switch for a socket and wire a charger into the light so no need to recharge it

Good idea re a socket which I've ummed and arred about. Decided it would need an extra box instead of just an FCU so have stuck with an FCU only.

Also because the cupboard is warm I decided a PIR light would be unreliable so have gone for a door switch like this instead -

https://www.ebay.co.uk/itm/204042397944

So FCU > Door switch > Led light