Transfo for Europe use

Hi everybody,

I just went to amazon and ordered 1 rachio 2nd gen for 16 zones and 1 for 8 zones. Need a lot of zones and read on the forum you can pair the 2 iririgarions in the same account.

I also ordered Eur=>Us power transfo but didn’t find the Watt I need for the 2 devices. Is a transfo for 100 Watt for each device enough ?