What would be the correct terminal in an LED controller for white, yellow, black and red wires? They aren't the standard bgr! So, does the black go to the'b' terminal? And so
![Can anyone tell me which of these is the positive wire and which one is the negative? Also can you eli5? (Striped one = pos/neg, one with writing on it = pos/neg : Can anyone tell me which of these is the positive wire and which one is the negative? Also can you eli5? (Striped one = pos/neg, one with writing on it = pos/neg :](https://i.redd.it/mz1isxs9ato61.jpg)
Can anyone tell me which of these is the positive wire and which one is the negative? Also can you eli5? (Striped one = pos/neg, one with writing on it = pos/neg :
![Bought a lamp in ikea and it came with 2 black wires. Instructions show black and white… can't really differentiate though one is ribbed and thicker and the other one is smooth Bought a lamp in ikea and it came with 2 black wires. Instructions show black and white… can't really differentiate though one is ribbed and thicker and the other one is smooth](https://preview.redd.it/bought-a-lamp-in-ikea-and-it-came-with-2-black-wires-v0-tck8rd39rtfa1.jpg?width=640&crop=smart&auto=webp&s=174dbc5e8ba6a8a5495bf2b556ec53a6a17b4352)