Power off - LED Floodligt Still illuminated

[seftonbarn]

Switch off. MCB off. What's occoring with this security light. Admittedly dim, but still illuminated with seemingly no wiggly amps.

 

[James]

check the light goes off when you turn main switch off.
assuming it does, then check voltage across L + N at light fitting and report back

 

[Taylortwocities]

Possibly induced voltages. Hang another load across the lamp, if it goes off then induced voltage is your problem. You’d need to fit a snubber to fix.

 

[seftonbarn]

check the light goes off when you turn main switch off.
assuming it does, then check voltage across L + N at light fitting and report back

Yes, light turns off when the mains switch is off. I get 5v AC across L&N. Does this mean there is a fault in the system?

 

[static zap]

I get 5v AC across L&N.

If these LEDs get any more sensitive / efficient they will be lighting with the RF from a nearby TAXI / Transmitter / Phone ...
(a bit like the after glow of fluorescents ) ... If its a safe voltage , and earthed .. is it really of concern .. If not due to dampness ?

.. If its a farmer tell him ..It's Free Electricity ..!
(and will not wear it out appreciably faster at such a low intensity)

 

[telectrix]

If these LEDs get any more sensitive / efficient they will be lighting with the RF from a nearby TAXI / Transmitter / Phone ...
(a bit like the after glow of fluorescents ) ... If its a safe voltage , and earthed .. is it really of concern .. If not due to dampness ?

.. If its a farmer tell him ..It's Free Electricity ..!
(and will not wear it out appreciably faster at such a low intensity)

don't tell a farmer that. he'll be pluging in his milking machine.

 

[seftonbarn]

Possibly induced voltages. Hang another load across the lamp, if it goes off then induced voltage is your problem. You’d need to fit a snubber to fix.

Thanks for your help. Do I get the snubber fitted across L&N at the lamp?

 

[Taylortwocities]

Thanks for your help. Do I get the snubber fitted across L&N at the lamp?

Yes!

 

[buzzlightyear]

maybe the op getting static from his jumper. When he got near it., like balloon.

 

[Moley]

You’d need to fit a snubber to fix.

Ohhhhh.....that's expensive. I suppose it is CEF! Try Farnells or CPS.

 

[Taylortwocities]

Or eBay at least its free postage.

Come back Maplin!

 

[Moley]

Ah Maplin. I remember when they were a component shop and not a toy shop. Their catalogue was full of component datasheets. I must be getting old. They are back online but nothing like they used to be.

 

[DPG]

Ah Maplin. I remember when they were a component shop and not a toy shop. Their catalogue was full of component datasheets. I must be getting old. They are back online but nothing like they used to be.

Absolutely. The amount of data in semiconductor section was amazing. And don't forget the artwork on the covers!

 

[seftonbarn]

Yes!

I bought one of these from TLC "Danlers Low Load Capacitors for Low Energy Lamps Load capacitors can be supplied to augment small loads (low energy lamps)"fitted it across L&N and the problem has not gone away? Any further ideas please? Much appreciated.