High voltage?

[Jay375]

I have a small woodshop in Republic of Georgia. I have one LED flood light that stays on all night, the rest of the shop is shut off by the breakers. Problem I am having is the light will "strobe" unless theres another breaker on or draw on that same circuit. They have been working on upgrading the electric where I am. The voltage to the single lamp is 243v, it reduces down to 239/240 when there are more circuits on and the light does not strobe.

Is there an inline voltage regulator I can use? I run a bunch of equipment, tablesaws, band saw, planers, etc. All works fine, just the light is the problem.

 

[Munroast]

voltage here in Scotland is always - 244 to 247 never had any probs with LED flickering / strobing

 

[Murdochcat]

Sounds like you need a snubber

 

[Jay375]

Whats a snubber?

Fixture says (some low voltage) up to 240v. I do find it hard to believe 3v make it strobe, but it does.

 

[Ragnar_AT]

Does the light strobe while it’s supposed to be on?

 

[Murdochcat]

Or of course the unit has failed as it’s the classic sign of a faulty LED driver

 

[Jay375]

The light is on 24/7. Its just plugged into a recepticle. With only the street power running that fixture it strobes, when I add more draw or flip other circuits on, it works normal.

 

[Jay375]

Or of course the unit has failed as it’s the classic sign of a faulty LED driver

I thought that too but it works fine when only 240v applied.

 

[Ragnar_AT]

Anything to be sold in Europe is required to work at a nominal voltage of 230 V +/- 10%, i.e. between 207 and 253 V. If the problem is actually caused by the voltage the light isn‘t fit for purpose.

 

[flameport]

Is there an inline voltage regulator I can use?

Yes, a buck transformer, but such a thing will cost more than a new light so it's not the solution here.

The voltage to the single lamp is 243v,

That is well within specification for anything sold in the general Europe area, which would be anything up to 253V.
Georgia voltages may not be exactly those, but it's rather unlikely anyone makes items which would operate in a reduced voltage range as they would be useless in many places.

I do find it hard to believe 3v make it strobe, but it does.

Either the device is failing and that small voltage increase is sufficient to cause problems.
Or there is more going on here, and it's not just the voltage which is the problem. Harmonics on the supply, some DC bias, transients and so on, all of which would be affected in various ways when extra loads were connected.

 

[Jay375]

These glass front LED floods dont last long at all then. Ive had two, two different brands go out within a year.

Thanks for everyones help!