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View Full Version : Changing a switched outdoor light fixture


bsllwllyn
Jun 28, 2014, 08:32 AM
If the switch is off, do I need to also turn off the circuit breaker? Is there any power to the light fixture when the switch is off?

ma0641
Jun 28, 2014, 08:42 AM
Could be, depending on how it was wired. If power is through the switch, shutting off the switch will stop the power. If powered through a switch loop, there will always be power at the fixture box, even if the switch is off. Look at the switch. If it has 2 black wires it is most likely hot through the switch. If you have a black and a white or a black and a white with black tape or marked on the white, you most likely have a switch loop.