IDK but i wouldn't buy them. There's multiple problems here.
~0.1% of prebuilt bikes are actually documented / designed to be repaired. For this reason, you will typically end up replacing most of the electrics to get a broken ebike working - the newer, the more likely this is the case.
People continually get busted for 'scooter with pedals added' type vehicles. There's no legal way to register such things as actual scooters because they don't have VINs or other identification markers.