Product Description Compatible with: Ring Video Doorbell Ring Video Doorbell 2 Skybell Doorbell Honeywell Smart Wifi Thermostat Sensi Thermostat Google Nest Thermostat 1st/2nd Easy installation FOR DOORBELLS 1. Keep adapter unplugged. 2. Install wires from 24volt adapter into the terminals for your doorbell unit (Simply attach the two rings to the doorbell and tighten the screws, regardless of positive or negative polarity) 3. Plug adapter into outlet. 4. Power up and verify your doorbell is receiving necessary power using the accompanying application. FOR THERMOSTATS 1. Shut off the circuit breaker power supply 2. Install any wire from the 24 volt adapter to the "C" end and another wire to the "RC" end. If your system has a cooling system, you may need to use the included diode and connect the “RH” to the 'RC’ terminal. 3. Plug the power adapter into the socket 4. Open the circuit breaker power supply 5. Install the panel on the thermostat Note: Before purchasing, Please confirm that the voltage and current required by the doorbell are consistent with this power supply. Please consult the Voltage requirements of your doorbell for specific recommendations. Please connect the doorbell before connecting the power supply, and be careful not to let the two cables connected together cause short circuit.) Continuous power supply It can be continuously Power supply your device without worry about taking off the doorbells/ thermostats and low battery, which is time-saving and effort-saving. New Upgrade - No Noise Different from other Doorbell transformers, our new design, silent charging, so you principle of noise trouble PACKAGE INCLUDES: 1 X 26.2 ft Cable 24V 500mA Video Doorbell transfomer (White) #productDescription { color: #333333; word-wrap: break-word; font-size: small; line-height: initial; margin: 0.5em 0px 0em 25px; } #productDescription_feature_div > h2.default { font-size: medium; margin: 0 0 0.25em; } #productDescription_feature_div > h2.books { color:#333 !important; font-size:21px !important; line-height: 1.3; padding-bottom: 4px; font-weight: normal; margin: 0px; } #productDescription_feature_div > h2.softlines { color:#333 !important; font-size:21px !important; line-height: 1.3; padding-bottom: 4px; font-weight: bold; margin: 0px; } #productDescription > p, #productDescription > div, #productDescription > table { margin: 0 0 1em 0; } #productDescription p { margin: 0em 0 1em 1em; } #productDescription h3 { font-weight: normal; color: #333333; font-size: 1.23em; clear: left; margin: 0.75em 0px 0.375em -15px; } #productDescription table { border-collapse: inherit !important; margin-bottom: 0; } #productDescription table img { max-width: inherit !important; } #productDescription table td { font-size: small; vertical-align: inherit !important; } #productDescription ul li { margin: 0 0 0 20px; } #productDescription ul li ul { list-style-type: disc !important; margin-left: 20px !important; } #productDescription ul ul li { list-style-type: disc !important; margin-left: 20px !important; } #productDescription > ul ul li { list-style-type: disc !important; } #productDescription ul li ul li { margin: 0 0 0 20px; } #productDescription .aplus p { margin: 0 0 1em 0; } #productDescription small { font-size: smaller; } #productDescription.prodDescWidth { max-width: 1000px } P.when('jQuery').execute(function($){ $("#productDescription table").each(function() { var width = $(this).attr('width'); if (width) width += 'px'; else width = 'auto'; $(this).css('width', width); var padding = $(this).attr('cellpadding'); if (padding) padding += 'px'; else padding = '0px'; $(this).css('padding', padding); }); }); #productDescription h3 { margin: 0.75em 0px 0.375em -1px; }