Brown Wire, Blue Wire and Green Stripe Wire - what are these? Which is black and hot and which is white?
Here is a common question that we get; Brown Wire, Blue Wire and Green Stripe Wire - what are these? Which is black and hot and which is white?
If you are reading this, chance are that you recently purchased a light fixture such as an LED Parking Lot Light or Warehouse lighting and are trying to install in the USA. Do not worry, the light is fine, its just using international wiring standards. As if meters and feet or liters and gallons were not bad enough, we now have wiring differences. Brown, blue and green stripe wiring is actually more common then our black, white and green.
The good news is that the matching is very easy. Brown is your hot wire so you want to connect that to your building's black wire. The blue is negative or return, so that will go to white. Green with yellow stripe is the ground and will go to the building green.
Brown to Black
Blue to White
Green to Green with Yellow Stripe
If you are running 220 volt or more then you will probably have multiple hot wires connecting to the fixture s brown wire. Remember that you should only run higher voltage if you have to. Most new LED Lights do not require that much power and 110v is fine. The only real reason anymore is for very long runs, such as sending wiring 200 plus feet out for Sport Court Lighting
See attached image for the visual version of the wiring guide.
Remember to always kill power at the breaker, not just the switch. Always secure your connections with proper wire nuts or other connectors. Safety first.