If the switch is good the bulb should light up and turn off as well.
Voltage detector light switch.
An automatic light switch may also be useful in the garage laundry room or attic.
Voltage detector w led light.
Live out to switch.
Disconnect the switch connect one lead to one terminal and put the probe on the other while you flick the switch on and off.
Manufacturer builders world wholesale distribution part number 2202 20 item weight 3 04 ounces product dimensions 2 x 8 x 1 inches.
Another great use for the circuit tester is to determine whether a switch is working photo 2.
The three red wires on the right are.
The product is highly durable.
Testing a light switch this is a question that comes up often and here is the answer.
If you use dimmable cfl or led bulbs look for a compatible motion detector switch such as one of the models from lutron.
Product information technical details.
The product is easy to use and easy to handle.
Sensky bs010l dc 12v to 30v 3a mini pir motion sensor switch occupancy sensor switch for gun safe kitchen cabinet pantry closet led lighting black with light sensor 4 5 out of 5 stars 526 10 99 10.
A common uk practice is to use the light fitting as a junction box for wiring fromthe supply to and from the light switch and onward to the next light fitting.
This video explains their many benefits.
The tester will produce a voltage reading if the switch is good however sometimes you can get false voltage reading which i will explain below.
Why a tester may read voltage while the light switch is off.
The bulb will light when you find the right wire.