Outside pir light problem

[dave1967]

Just doing what i thought was a simple job for family member.

Replaced a screwfix dunham light with pir with a new maine pir light. Connected it up the same . (black to neutral and red to live and the earth) didn't work. Being now told that the new light needs neutral, live and earth and it  may have live and switched live as its off a switch. Could this be right?

[markc]

Post a pic of your new light connections, may just need live and switched live linking, but then that could be on all the time. Post a pic of your new light connections

 

[dave1967]

Its just a choc block connector l n and earth

[markc]

23 minutes ago, dave1967 said:

Its just a choc block connector l n and earth

In that case you don’t need anything else, I had a similar thing a few years ago and you had to “programme” the light by flicking switch on and off a certain number of times to set how you wanted the light to behave … on dusk till dawn, trigger only etc.

[Spinny]

Presumably the switch will need to be on all the time to power the PIR detector.

 

The other route these days is to separate the light and the detector wireless smart home fashion. I see there is even a Quinetic PIR detector (battery powered) with adjustable lux level too - Quinetic PIR Link

(Not to mention mm wave radar detectors - not sure how well they go outdoors though)

[dave1967]

Its not working. Ive been told older lights can work with live. To live and switched live to neutral but new lights wont work this way and need a neutral.  Is this rubbish?

Edited 12 hours ago by dave1967

[Nickfromwales]

47 minutes ago, dave1967 said:

Its not working. Ive been told older lights can work with live. To live and switched live to neutral but new lights wont work this way and need a neutral.  Is this rubbish?

Sounds nonsense. If this is a PIR light then you’d just turn the light switch on and leave the unit powered 24/7. 
 

Then you have L & N + E constant power.

 

If you want to turn the switch off, for some reason, then seems an odd choice of light fitting! Switching it back on will provoke a start up time event, every time you do so, but then it’ll go off and into PIR mode.

 

Just turn the light switch on and leave it on. 
 

I assume you know you shouldn’t be connecting L and SW L together? Nothing but the factory wiring should be in SW L. 

[dave1967]

Nothing tripped. Im trying to find out if switched live to neutral on the light is a thing or not. 

[Nickfromwales]

39 minutes ago, dave1967 said:

Nothing tripped. Im trying to find out if switched live to neutral on the light is a thing or not. 

A switched live is only a switched live, if you keep flipping the switch.

 

If you flip the switch on, and leave it on, it's then a permanent supply  

 

Live is live, comes from the same place, ends up in the same place.

[ProDave]

Post a picture of your connections at the light fitting, that should clear this up.

[dave1967]

I can do but its just earth to earth . red to live and black to neutral. May be a dud light.

[FuerteStu]

Could it be a class two fitting (all plastic and no earth). And you're confusing the earth and neutral? 

 

Perhaps the wiring you have (red/black + other) is a live, switch live and neutral. 

 

I think we'll need the instructions and wiring diagram to confirm.