Should I use 12-3 or 14-2 wire for ceiling can lighting?

My husband was trying to install a ceiling fan this weekend to replace an old one that was there previously. From the ceiling, we have a black wire, a white wire, and a blue wire. However, in the instructions for the fan, it says that in the ceiling we should have a black wire (ungrounded), a...

I dissassembled my ceiling fan light kit. How do I rewire it back together?

I'm new to this great site! Thank you in advance for any help. I am installing a new lighting fixture in my kitchen. When I removed the previous unit from the ceiling, I found only two wires and two wire connectors. One black and one white. In the NEW fixture, there is a black and a white...

I'm planning on installing 2 ceiling fan, 1 in each of 2 bedrooms. There's no electrical on the ceilings and need to come down from the attic. The attic has several different white plastic contained wires running throughout the attic. I'm wondering if I should splice from 2 separate sources, or...