HQRP 120V to 24V 40VA Foot Mount Transformer for 4011OF 503625 HVAC Furnace Tap
HQRP trademarked products. Input: 120V AC;. Output: 24V AC;. Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation;.