Photo 1 of Hotop 1 Pack 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with All Versions of Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/24V Adapter

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Photo 1 of Hotop 1 Pack 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with All Versions of Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/24V AdapterPhoto 2 of Hotop 1 Pack 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with All Versions of Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/24V Adapter