Feekoon 16V 30VA AC Plug in Ring Doorbell Transformer, 16 Volt Doorbell Transformer Universal Adapter with PTC Fuse Compatible with Ring Nest Doorbell, UL Listed(1 Pack)

UL certified, PTC design for circuit protection, avoid damage the components in the circuit; Auto resetting, with LED green power indicator, positive/ negative/ screw terminals Specification: input is 120V/ AC, 60 HZ; Output: 16V/ 30 VA; Tip: the load voltage (when the doorbell is running) is 16V and the output of noload voltage is about 18V, it is normal situation and won't affect any use; When testing the product, pay attention to use an AC voltmeter or a multimeter to test the output voltage value and use a voltage tester to measure the accurate voltage output data Easy Installation: output with screwing the cable on the terminals, you can arrange your cables freely according to the length you need, to make the wires neat; Please notice: only equip with plug in transformer, no extra wires included Avoid the Doorbell/Thermostat Underpower Shortage: 16VAC, 30 VA AC plug in transformer adapter, improve the situation of underpower, providing sufficient power for your most doorbells Compatibility: our 16V doorbell transformer is compatible with Ring video doorbell/Ring video doorbell 2/Ring video doorbell pro/Nest Skybell doorbell and other devices that require constant 16 volt power for operation;