Hi, I am asking for any advice on installing the ring doorbell pro. I am interested in installing it using a plug in transformer , as I have no existing hardwired doorbell and no space in my cu. I was wondering if anyone had installed the ring pro using this method (which you can do) and if so which uk plug in transformer did you use and could you point me in the right direction to purchase one as I am having difficulty finding one. Thank you in advance for any help.