Photo 1 of 1 Pack 16.5V 30VA Doorbell Transformer Plug in Compatible with Ring, Nest, Ecobee, 16.5 Volt Doorbell Transformer with PTC Fuse, UL Listed

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Photo 1 of 1 Pack 16.5V 30VA Doorbell Transformer Plug in Compatible with Ring, Nest, Ecobee, 16.5 Volt Doorbell Transformer with PTC Fuse, UL ListedPhoto 2 of 1 Pack 16.5V 30VA Doorbell Transformer Plug in Compatible with Ring, Nest, Ecobee, 16.5 Volt Doorbell Transformer with PTC Fuse, UL Listed