About This For Use With Honeywell Home WiFi Thermostats, RedLINK 8000 series thermostats The C-Wire Power Adapter makes Honeywell Home smart thermostats compatible with most homes that don’t have a common wire..Product Type :Electronic Component. | Package Dimensions :10.0 " L X10.0 " W X10.0 " H.Country Of Origin :United States Quickly and easily power connected thermostats that require a c-wire. Use for Wi-Fi, 24v Honeywell Home thermostats when a common wire is needed but not present. Easy push terminals and an adhesive mount make installation quick and easy. Simple adhesive mount allows you to attach the adapter to the outside of your furnace. Product Type: Electronic Component. | Package Dimensions: 10.0 " L X10.0 " W X10.0 " H. Country Of Origin: United States Overview Brand : Honeywell Model Name : THP9045A1098 Product Dimensions : 1.75"D x 3.44"W x 5.63"H Controller Type : Hand Control Special Feature : Low Voltage