Monitor had been flickering, then would not switch on. Traced problem to a failed 4A adapter (not a CWT one). Replaced it with this CWT adapter, and it now works perfectly. I picked the CWT because I have another monitor that has used a CWT for many years and it was offered at a good price for a high quality adapter. There is no power lead supplied with this CWT, but I was replacing an existing adapter that also used a UK kettle lead, so I did not need or want one.