Security Lights

[barry wilkins]

I have just been looking at a PIR security light ,usually these have two sensors
Cds cell.
Pyrolytic detector.
The one I have looked at only has one IR detector.
Does this carry out both functions of sensing the visible light, and the infra red radiation ?

Barry Wilkins

[stj]

Re: Security Lights

cheap ones just switch when they detect a person,
better ones only work when it's dark to save power.

[Poor Flick]

Re: Security Lights

If you like the manual on option make sure it's listed on the box. I thought I got a good deal on some motion detect lights, they didn't have that feature, I need to take them back.

[stj]

Re: Security Lights

i used to just rewire them for a 3way switch - on-off-auto
it will trash the warranty messing with the internal wirring usually though.

[barry wilkins]

Re: Security Lights

After I posted this I realised that dusk function operated when the output of the PV cell dropped because of the darkness .The IR detetctor just operated by body heat.

Barry