Question for elec techs
I installed a 120v led light outside on the garage, and decided to switch the white wire, instead of the black (hot) wire. All worked fine, except for when it got dark, the light burned about 1/4 brig...
Forum Discussion
Dr Quick wrote:
I believe that LED lights are polarity sensitive, as they are not a bulb, but a diode. They must be connected positive to positive.
OP is talking a 120V AC LED bulb.
Granted LEDs are "polarity" sensitive, but in the case of 120V AC it DOES NOT MATTER.
The reason why is the LEDs act like a diode and only conduct ONE WAY, AC ALTERNATES "polarity" so a LED would conduct no matter how you hook it up.
However, properly made 120V LEDS use ADDITIONAL circuity in the form of a full wave diode rectifier, small filter capacitor and a couple of resistors to feed the LEDs DC voltage..
Advanced 120V LEDs take that one step forward by adding in a LED DRIVER circuit which regulates the current the LED gets.
Any case the result is a 120V LED does not care as to "polarity" as in 120V Hot/neutral.
