Well, who told? Branded, well made adapters adhere to electric standards and there's nothing which would make them inherently less safe or technically inferior compared to other electric devices. I have used old AV-standard based adapters, both plug in and DIN-mounted (in mains panel), they work great. I have used them indoors and outdoors (lowest temp around -20C, highest around +45C) and they work reliably year after year.
Recently changed all my devices to G.hn-standard based, it's even better than old AV. Using these on standard European three phase system (note, GB uses ring circuit, which is somewhat different in wiring). Transfer speeds are excellent, more than adequate for security cameras (using 8MP Reolinks), 4k streaming. Normal 100Mb household IP-connection can't saturate them, even close,. I have some Cisco Catalyst AX-series APs behind G.Hn powerline links and for internet connections, bottleneck is always the 100Mb internet connection to ISP, not powerline.
Recently changed all my devices to G.hn-standard based, it's even better than old AV. Using these on standard European three phase system (note, GB uses ring circuit, which is somewhat different in wiring). Transfer speeds are excellent, more than adequate for security cameras (using 8MP Reolinks), 4k streaming. Normal 100Mb household IP-connection can't saturate them, even close,. I have some Cisco Catalyst AX-series APs behind G.Hn powerline links and for internet connections, bottleneck is always the 100Mb internet connection to ISP, not powerline.
