24 Volt Doorbell Transformer 24VAC 40VA 1666mA Plug in Transformer with PTC Fuse Compatible with Nest Ecobee Sensi and Honeywell Thermostat and All Versions of Ring Doorbell

JAMHER 24V 40VA Plug in Thermostat and Doorbell Transformer Specification: Input voltage: 120 VAC, 60Hz Output voltage: 24V, 40 VA Solve Problem: 🔧No more doorbell or thermostat underpower hassel 24V 40VA Plug in transformer, replaces and upgrades underpowered transformer with this 24V AC transformer, offering plenty of power for your thermostats and doorbells. Safe and stable: Auto-resetting (PTC) fused secondary LED green power indicator Positive/negative/ground screw terminals Note: The brand above is only for demonstrating compatibility

• Plug in Alarm System Transformer for your Security System
• Easy to install: Screw down and thread clamps to electrical box Output with screw terminals, You can freely cut the connecting cable and arrange the cable according to the length you need to make the installation simple and beautiful
• Input voltage: 120 VAC, 60Hz; Output voltage: 24V, 1666mA ,No-load output voltage: 26.6-28 V,SAFE AND STABLE auto-resetting (PTC) fused secondary, LED green power indicator
• Powers thermostats and doorbells: replace underpowered transformers save the trouble of frequent battery replacement
• Fits for Honeywell and Sensi smart thermostats; Nest, Ecobee,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(The brand above is only for demonstrating compatibility)