A lot of early security lights (and some modern ones) have a feature whereby if you flick the power off and then back on within a few seconds the light will stay on permanently. To make it work normally (switched by the proximity sensor) the power needs to be off for at least 10seconds before going on again. The problem was that a momentary supply glitch would result in the light being on permanently. I agree with comments about broken ring, fused spur, sleeved earth etc.

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When you turned off the power did you just turned off the power main power if so then flip it off and back on very quickly if it is the lights that need resetting. Then that should work. Cheers. GT

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Both of the blue /brown / earth wires at the top look to be part of a ring... Which has been broken! (Turn the main incoming power off at the consumer unit and do a continuity test to confirm.)

Some motion lights need to be reset, and a quick on off on some models will turn them on while a longer off on cycle may turn it off. It's also possible the sensor has failed. Removing the brown wire going to the fixture will remove the power to the light, the red is normally the output from the sensor, and the blue is neutral or the return. If you add a switch on that brown 1 side going to the switch the other side going back to where the brown was connected, you could control it with the switch. Make sure to make any changes with the power off.

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HighPowerLEDdiode

I believe the key words here are "years ago" and "motion sensor". Motion sensors don't generally live that long. It may be time for a new fixture, or if modular, a new motion sensor.

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An initial Google of how to fix the problem mainly returns results saying to switch the spotlight on and off again rapidly to reset the sensor. However, I can't actually find a switch for it, and I believe it is wired directly into the mains. I did find this cover in the upstairs bedroom shown in the first photo which is directly behind the spotlight and I'm 99% sure this is the wiring for it but it's just that, wiring, and not an on/off switch.

My Grandma has an outdoor spotlight that hasn't worked for quite some time. I realised there wasn't actually a bulb in it so I ordered a new one, switched off the mains, fitted it, put the power back on, and it works, the light comes on! There's only one problem - it won't switch off again!

Also. If this isn't on a rcd circuit, you will need an rcd fsu. All outdoor wiring has to be on an rcd protected circuit.

HighOutputLED

If obtaining replacement parts (or an entire unit) from the same manufacture is impossible, maybe its time to remove the entire configuration and go back to a basic light switch system.

But since you don't know this basic thing ( and you're therefore not legally competent) I'd suggest getting a sparky, ... Electricity kills.

It is most likely that the sensor broke a long time ago, and your Gran - either herself or perhaps asking someone else to - removed both bulbs because they were permanently stuck on, day and night - and rather than get it fixed at that time, "the problem" was removed. You have simply highlighted the old problem. Maybe your dad could shed some light on this.

Years ago, I remember that when the outdoor spotlight was triggered by someone approaching the door, the bulb indoors would light up as well. However, both bulbs are just permanently shining and I can't figure out why. My Gran has since forgotten why the bulbs were removed from the outdoor and indoor lights, or how they've gotten like this.

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Hi that light should have been fitted with a fused spur with switch and 100per cent pir has failed due to weather conditions you can then fit a light switch in hall way Allways turning your light power off

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