IKEA's LED drivers use cables with connectors that seem to be identified elsewhere as "mini AMP".
The socket appears to be a 6mm square, with a ~1mm wide and ~0.5mm high groove opening at the bottom centre and a 2 mm wide x 1 mm high rectangle in the upper right corner to ensure proper orientation.
Upper side of the connector has free space on one side which allows it to mate to the socket.
While I can find many examples on European websites, including Amazon, I can't seem to find anything similar in North America. Does someone know a standard name for the connector type in question?
By repeated searches, I've managed to find that "Dupont L813 male" is sometimes mentioned as well.