I had a USA version of lights similar to these when I was younger, they had a green cord and the lamps were not 'extended' out of the main cord; they were wired in like a regular mini light set. Ours were not multi-function and just ran off of straight 120V with no transformer needed. Sadly they died several years ago (I imagine a bulb burned out and broke the circuit) and I was never able to find another set.