The Photonic Universe one is the one I use. Mine is badged by the actual maker (Epever) and cost £65.61 (inc delivery). I can't remember if that included the wifi connection module.
Both are good, but the latter is better, in my view.
[Later] Just realised that my Epever controller isn't the 120 watt one: it is over 200W - it has 200W of panels connected and has capacity to spare.
[Later still] I forgot to mention the difference in physical size. The Voltronic one is much smaller. Check the spec if this is an issue for you.