It says they're for left hand drive vehicles so simply put no, they won't be okay for use in the UK.
The more complicated answer is that the headlights units have a switch on them which allows them to be used in country's that drive on the other side of the road (UK, Australia, Japan, etc.) but this doesn't "convert" them, it merely "chops off" the part of the light that would otherwise blind oncoming traffic in much the same way that the little stickers you can buy to make your lights "safe" for use in foreign countries do.
All in all I'd say it's worth waiting for a proper set of RHD ones to come up...