“This is a must in my experience with pis’ to date. The small pi zero tends to be happy with any power supply but the 3 and 4 variants are fussy and give voltage warnings if the correct power supply is not used.these from the pihut are not over expensive and work perfectly.”
“Nicely designed power supply which has worked perfectly so far. Would be nice to have the interchangeable UK/EU/Asia adaptors found on previous power supplies.”