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LED voltage indicator for bulb socket
- Thread starter Ralf11
- Start date
RTM
Well-known member
I’ve never seen one. Seen 12v socket and USB version, but not 110vac.
If you screw in an adapter, this gets you close, but not sure about 3 prong screw in, so cut one leg?
https://www.amazon.com/dp/B081ZL5PCV/?tag=atomicindus08-20
Oops, here is a 2 blade
https://www.amazon.com/dp/B015H0A3FO/?tag=atomicindus08-20
If you screw in an adapter, this gets you close, but not sure about 3 prong screw in, so cut one leg?
https://www.amazon.com/dp/B081ZL5PCV/?tag=atomicindus08-20
Oops, here is a 2 blade
https://www.amazon.com/dp/B015H0A3FO/?tag=atomicindus08-20
Again, why? There just isn't a demand for consumers to measure their light bulb socket voltage, so such a product would be niche, which tends to mean more expensive and difficult to find than getting this done in more conventional ways, whether "getting this done" means a voltage reading or instead solving the core problem.
What is a voltage critical appls? Why do you need this on an extension cord at all and then, why a bulb socket instead of just a regular extension cord that any typical outlet voltage monitor plugs into?
Monitoring voltage remotely like this, the extension cord doesn't even need to have any significant size (low gauge), any cheap thin one would work, so the cost could end up as low to not try to buy a niche product that has a bulb socket or fiddle with adapting it.
More often than not, your voltage drop is going to be between an outlet and the powered device, not showing up on something plugged into a separate outlet/hole, unless you think your wiring is substandard for the circuit's current rating and in that case, don't hesitate to fix the wiring.
If you are observing that your site suffers brownouts, more info might help, what problem is the reduced voltage going to cause and why not use a line conditioner to get over that?
What is a voltage critical appls? Why do you need this on an extension cord at all and then, why a bulb socket instead of just a regular extension cord that any typical outlet voltage monitor plugs into?
Monitoring voltage remotely like this, the extension cord doesn't even need to have any significant size (low gauge), any cheap thin one would work, so the cost could end up as low to not try to buy a niche product that has a bulb socket or fiddle with adapting it.
More often than not, your voltage drop is going to be between an outlet and the powered device, not showing up on something plugged into a separate outlet/hole, unless you think your wiring is substandard for the circuit's current rating and in that case, don't hesitate to fix the wiring.
If you are observing that your site suffers brownouts, more info might help, what problem is the reduced voltage going to cause and why not use a line conditioner to get over that?
Last edited:
FSrepair&fabrication
Well-known member
Why wouldnt a Fluke meter work?
RTM
Well-known member
IF monitoring voltage to a piece of valuable equipment, I would use a recording meter, not a cheap digital. But the results may drive you bat-@#$@ crazy. Back in the day, we had a word processor that was failing, frequently. We plugged in a recording volt meter, and turns out the automatic stapler was causing the voltage to change by over 75 volts. Firing the stapler would give a drop and spike from 70V up to 145 or so. I forget how we fixed it, but it wasn't the stapler in the end.
Key point: I don't think the LED will respond fast enough to see any meaningful spikes. You may see a brown out event, if you are staring at it.
Key point: I don't think the LED will respond fast enough to see any meaningful spikes. You may see a brown out event, if you are staring at it.
DMM + circuit breaker finder adapter kit is what I use, but if you already have an edison to 2 prong you don't even need to buy the kit.