Top 10 Best 24v ac power supply in 2026

Main highlights

• •【Warm Tips】Please read the installation instructions carefully before use (the middle terminal is connected to the ground wire) to avoid installation errors that may cause the product to become unusable
• •Eliminate doorbell/ thermostat underpower hassle: 24V 40VA plug in transformer, replaces and upgrades underpowered transformer with this 24V AC transformer, offering plenty of power for your thermostats and doorbells
• •Specification: input voltage: 120 VAC, 60Hz; Output voltage: 24V, 40VA; The power supply needs to be disconnected during the installation process; The resistor is not insulated; Please wear insulating gloves and other protective tools to avoid injury
• •Safe and stable: auto resetting (PTC) fused secondary, LED green power indicator, positive/ negative/ screw terminals
• •UL Certified and Easy Installation: electrical outlet mounting tab; Warm Tip: Only equip with plug in transformer, no wires included
• •Universal compatibility: this 24v transformer is compatible with Ring video doorbell, Ring video doorbell 2, Ring video doorbell pro, Nest Skybell Doorbell, also compatible with Nest, Ecobee/Honeywell and Sensi Smart Thermostats, and other devices, that require constant 24 volt power for operation; Note: please add a 50W Watt 25 Ohm Resistor if you use this transformer to charge a doorbell, the brand above is only for demonstrating compatibility

Main highlights

• •Compatible with Multiple Devices: This transformer is compatible with all versions of Ring Doorbell, including Video Doorbell 2, Video Doorbell Pro, and Nest Doorbell. It is also fully compatible with smart thermostats such as Honeywell, Nest, Ecobee, and Sensi, ensuring a wide range of smart home devices can be powered seamlessly
• •Unique Design with Enhanced Safety: Equipped with an auto-resetting (PTC) fused secondary, this transformer ensures a safe and stable power supply. The integrated LED green power indicator lets you know when the transformer is powered on. Input voltage: 120 VAC, 60Hz; Output voltage: 24V, 40VA; No-load output voltage: 26.6V. Additionally, the transformer features a built-in fixed screw, providing extra stability and easy mounting
• •Continuous Power Supply for Multiple Devices: This 24V AC 40VA plug-in transformer is designed to replace and upgrade underpowered transformers, ensuring a continuous and sufficient power supply for your smart thermostats and doorbells. With this transformer, you can say goodbye to frequent battery replacements, ensuring seamless operation for your devices
• •Easy to Install with Customizable Cabling: The output screw terminals allow for easy connection of cables, and you can freely cut and customize the connecting cable to your desired length. The plug includes a fixed screw on the head, making it easier to securely mount the transformer to the electrical box. This design provides extra stability and makes installation simple and hassle-free
• •VIIVRIA - A Brand You Can Trust: VIIVRIA has specialized in communication adapters for over a decade, earning a strong reputation in the North American market. Our focus on reliable and durable products ensures top performance for your smart home devices. If you have any questions or concerns, our dedicated customer service team is always here to assist you

Main highlights

• •Doorbell/Thermostat power solution: 24Vac 40VA wall transformer, using this Transformer to replace and upgrade the insufficient power transformer, can provide sufficient power for your thermostat and doorbell, save the trouble of frequent battery replacement
• •Specification: input voltage: 120 VAC, 60Hz; Output voltage: 24V, 40VA ,No-load output voltage: 26.6V,SAFE AND STABLE auto-resetting (PTC) fused secondary, LED green power indicator
• •Compatible With: This transformer compatible for Honeywell, for Nest, for Ecobee, and Sensi smart thermostats; Also compatible with Video Doorbell, Video Doorbell 2, Video Doorbell Pro, for Nest Skybell Doorbell。Note: The brand above is only for demonstrating compatibilityyy
• •Easy to install: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
• •Multimeter test products: When using a multimeter to test products, pay attention to using an AC voltmeter or multimeter to test the output voltage value, and use a voltage tester to measure accurate voltage output data. The no-load voltage output measured by the multimeter is about 26.6-28V, which is normal and does not affect any use.

Main highlights

Main highlights

• •Transformer specification: EI48 x 24 bedroom cable tray isolation transformer Insulation class: Class 2
• •Parameters: Input: 120V 60Z (red input), Output: Load: 24V 10VA (blue output), no-load voltage: 25.8V. The maximum power of this transformer is 10VA. Please use within the AC 24V10VA power range, as prolonged overload use can cause the transformer to burn out
• •Product size: 75mm long/2.95in wide/44mm/1.73in high/42mm/1.65in installation hole spacing 63mm/2.48in wire length 180mm/7.1in net weight of product is about 372g
• •Product application: suitable for stage lighting, audio equipment, small power supply K-030, RV emergency lighting, 24V AC voltage adaptive products, industrial control, etc
• •After sales service: If you have any questions about product compatibility and order, please contact us via email or express your opinions in the Q&A section. Our customer service will reply to you within 24 hours

Main highlights

• •Input: 100V-240V 50/60Hz; output: 24V DC, 1A max; Works with device that draws less than 1A, such as 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1A.
• •It is perfect for 24V devices less than 24W, such as 5050 2835 24V LED light strip, routers, security surveillance industry, CCTV camera, CD player, portable game machines, as routers, modems, office electronic devices, and other industrial applications.
• •DC plug connector external diameter is 5.5mm, internal diameter is 2.1 2.5mm. Comes with a female DC barrel connector. You can easily screw wires on it without soldering.
• •Built-in intelligent protection system, with over-current, over-voltage, short-circuit, stability and other safety protection technologies to protect your equipment.
• •Package include: 1 x AC/DC Power Adapter,1x DC female connector.
• •Cable length: 100.0 centimeters
• •Connector type: 2_pin
• •Compatible devices: Cameras
• •Power source type: ????

Main highlights

• •24 Volt Power Supply Specs : Input: AC 100V-240V 50/60Hz; Output: DC 24V 6A 120W max; Standard 5.5 x 2.1mm DC jack, Central Positive(+), Outer Negative(-). Length of 24vdc power supply:3.94ft/1.2m. Works with device that draws less than 5A, such as 24V 5A, 24V 4A, 24V 3A, 24V 2A, 24V 1A, etc
• •Safety 24V Power Supply : Auplf 24v dc power supply optimized parts combination structure, so that it has better heat dissipation and power output stability. No noise, more quiet and longer life. Automatically overload cut-off, over voltage cut-off, over temperature cut-off, short-circuit cut-off
• •Voltage Consistency : Low voltage fluctuations at power on, during transmit, receive, or at power off. Auplf 24v led power supply will protect your electronic products from destruction. Comes with a LED terminal connector, you can easily screw wires on it without soldering
• •Wide Application : Auplf 24 volt dc power supply is fit for rgb LED strip light, water purifier, CCTV camera, LCD monitor, massage chair, DC motor, DC pump and other 24V devices less than 144W
• •Support & Service : All 24v led power supply adapter has been passed tested before shippment, support 180 days get replacement if any quality problem. 24*7 email support. Please feel free to let me know for any questions

Main highlights

• •Input: 100V-240V 50/60Hz. Output: 24V DC, 3A max. Output adaptor jack size: 5.5mm x 2.1mm
• •It comes with a free female DC connector. So you can easily connect wires on it without soldering.
• •Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection.
• •Enough 72W output power and 24V stable output voltage will protect your electronic products from destruction.
• •It is perfect for LED Strip Light, Wireless Router, ADSL Cats, HUB, Switches, Security Cameras, Audio/ Video Power Supply.

Main highlights

• •Input: AC 100V to 240V 50/60Hz 0.4A Max, Worldwide input voltage range, US standard wall plug.
• •This 24v 1a power adapter is suitable for electronic devices with an input voltage of 24V and an input current not exceeding 1A.
• •6 Feet / 1.8 Meters Extra Long Power Cord
• •Original DC Plug Size: 5.5mm * 2.1mm, Additionally, it comes with multiple interchangeable plugs, offering wide compatibility
• •According to relevant industry standards, a voltage difference of ±5% is a qualified product. A slight fluctuation in voltage will not affect normal use