Some of the control boxes have three AA Batteries but others only have one battery. Taking a closer look at the info on these units and the batteries they are 1.2v not 12v as previously indicated. Is it still possible to perform the change to mains (240v) power?
I have a number of string fairy lights that I want to attach to maims power via a transformer and controller. Can this be done? If so how? Do not want to just throw these faulty lights into the bin!