On Jun 12, 9:23*pm,
(insaneelectic) wrote:
insaneelectic had written this in response tohttp://thestuccocompany.com/maintenance/Re-power-in-circuit-bulb-does...
*:
Wow, thanks for your very helpful response.

Smitty Two wrote:

I have a ridiculous problem with a circuit in my house.
Yer gonna have a ridiculous problem with yo face if you don't stop
spamming us from your sucko company.

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As Jimmie pointed out, with a high impedance tester you can measure
120V with no load, but that doesn't mean there is still 120V there
when you put the load (bulb) in the circuit. Imagine you had a 100K
ohm resistor in series with the hot lead. That could be the case with
a bad connection, switch, etc. If you use your high impedance
tester, you will measure 120V at the end of the hot wire. But put
the bulb there and you will be measuring very little, because the
voltage is now divided between the 100K resistor and the bulb, with
almost all of it being across the resistor, not the bulb.

Try measuring the voltage with the bulb in place and you will likely
find it closer to 0 than 120V.