Hi all.
I have just bought an outside light fitting that has two lamps in it, one pointing up and one down. At the moment the lamps are wired in parallel, and my intention is to use the downlight to illuminate the house number, while the uplight will reflect off the porch soffit. I have a switched L, N & E from a switch inside the hall to this position, so all simple enough. But I also have a timer and photocell that switches another, separate outside light, and the switched L N & E from this timer/photocell could be extended and used for the new fitting, so it would come on and off automatically, rather than use the hall switch. Also simple enough.
However I would like to split the two lamps and switch them independently, the downlight from the timer/photocell and the uplight from the hall switch. Obviously I will have to put another choc block or wagos in the light fitting to facilitate this, there's enough room and it's simple enough to wire (keeping the N's as well as the L's separate), but the timer/photocell and the hall switch are on different breakers (in fact they are on different CUs, one is in the house and the other is in the (attached) garage). I realise this arrangement may not be "best practice", but if I ensured it is labelled as such, would wiring two lamps in the same housing from two separate breakers be considered a total no-no? Neither CU has RCDs, just MCBs, although the existing timer/photocell feed is from a fused RCD spur unit fed from the garage radial. The fitting itself is class I, so presumably connect the two earths together in the fitting?
Appreciate your thoughts,
KM.
I have just bought an outside light fitting that has two lamps in it, one pointing up and one down. At the moment the lamps are wired in parallel, and my intention is to use the downlight to illuminate the house number, while the uplight will reflect off the porch soffit. I have a switched L, N & E from a switch inside the hall to this position, so all simple enough. But I also have a timer and photocell that switches another, separate outside light, and the switched L N & E from this timer/photocell could be extended and used for the new fitting, so it would come on and off automatically, rather than use the hall switch. Also simple enough.
However I would like to split the two lamps and switch them independently, the downlight from the timer/photocell and the uplight from the hall switch. Obviously I will have to put another choc block or wagos in the light fitting to facilitate this, there's enough room and it's simple enough to wire (keeping the N's as well as the L's separate), but the timer/photocell and the hall switch are on different breakers (in fact they are on different CUs, one is in the house and the other is in the (attached) garage). I realise this arrangement may not be "best practice", but if I ensured it is labelled as such, would wiring two lamps in the same housing from two separate breakers be considered a total no-no? Neither CU has RCDs, just MCBs, although the existing timer/photocell feed is from a fused RCD spur unit fed from the garage radial. The fitting itself is class I, so presumably connect the two earths together in the fitting?
Appreciate your thoughts,
KM.
