GENIE Garage Door Opener Transformer UT110 Adaptor 2278

Power Pak transformer, 24  volt adaptor,  comes with coiled wire and is used to provide alternate power source to receiver.     Plugs into a 110V std outlet.   Hooks to terminals numbered 1 and 3 on the receiver. Terminals 1 and 2 on the garage door receiver are then connected to the push button terminals on the Genie garage door opener power head.