YUNFOOK Doorbell Transformer: UL Listed for safety
Need a rock-solid power source for your smart doorbell or thermostat? This 24V 40VA transformer has got your back, keeping your Ring, Nest, or Honeywell gadgets humming along without a hitch. And hey, it's not just talk—this baby's UL certified, so you can sleep easy knowing it's as safe as houses (literally, since it reduces fire risks).
Here’s the lowdown: it plays nice in just about any setting—home, office, or even that quirky industrial loft you’ve been eyeing. Installation? A breeze, thanks to the idiot-proof wiring diagrams (we’ve all been there). Plus, that UL-listed badge isn’t just for show; it means business when it comes to safety.
Bottom line: whether you’re decking out your pad with the latest smart tech or just making sure your current setup doesn’t bail on you, this transformer is the unsung hero you didn’t know you needed.
Features
- 24V 40VA power output
- Wide device compatibility
- Easy installation process
- Exceptional customer support
- UL Listed for safety
General specs
- Brand: YUNFOOK
- Seller: Amazon
- ID: B0F4D84VY2
- Input: 120V, 60 HZ
- Output: 24V at 40 VA
- Country of Origin: China
- Package Dimensions: 4.33 x 3.82 x 2.99 inches; 1.65 Pounds
- Date First Available: April 10, 2025
- First listed by seller: 7/17/25
If you are interested in more details, you can find full information on the seller's page.
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Price History for seller Amazon
Shipping options
Russia
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| Brand | YUNFOOK | Adamax | HUIYEETEX | Newhouse Hardware | Globe Electric | Saillong |
| Model | 16TR | CKIT8 | SL-27102-02 | Saillong-Buttons-021 | ||
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| Price | $17.99 | $12.95 | $20.99 | $21.80 | $21.28 | $8.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | Mar 28, 2026 | May 12, 2026 | Mar 21, 2026 |
| Country of Origin | China | USA | China | |||
| Package Dimensions | 4.33 x 3.82 x 2.99 inches; 1.65 Pounds | 3.98 x 2.72 x 2.09 inches; 4.66 ounces | 3.98 x 1.57 x 1.26 inches | |||
| Date First Available | April 10, 2025 | August 11, 2023 | June 20, 2024 | August 5, 2008 | ||
| Item Weight | 13.8 ounces | 2.57 pounds | 1.44 ounces | 1.44 ounces | ||
| Product Dimensions | 2.5 x 1.75 x 2 inches | 4.25 x 2.32 x 10.35 inches | 2.31 x 4.12 x 10 inches | |||
| Part Number | CKIT8 | SL-27102-02 | Saillong-Buttons-021 | |||
| manufacturer | Newhouse Hardware | Globe Electric | Saillong | |||
| Batteries Required | No | No | No | |||
| Item Package Quantity | 1 | 1 | 2 | |||
Doorbell Transformer UL Listed for safety
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