I am installing new LED under cabinet lights in my kitchen. The lights are part of a whole kitchen lighting set. The old lights (fluorescent) and existing wiring have 2 black and 2 white wires plus a ground. The new LED lights only have 1 black, 1 white, and the ground. How do I connect these? I’m guessing combining the blacks with a wire nut and the whites with a wire nut? Or will this burn the house down?