Abstract: The mechanically adjustable electric outlet device comprises a plurality of female receptacle plugs connected in parallel circuit and a semi-stiff, spring-metal wire which is resiliently formed into a circle of variable diameter so as to mount at the top of Christmas trees of various diameter trunks. One end of the electric outlet device terminates in a conventional male plug which energizes the device by connecting to a power source while the other end of the device terminates in a fastener part which may fasten to second fastener means of any of the female receptacle plugs to provide circular mounting around Christmas tree trunks of various diameters.