Smart-home power supply designed to keep video doorbells and thermostats running reliably with a steady 18V/500mA output. Homeowners gain peace of mind thanks to an extra-long 8m cable and built-in safety protections, avoiding frequent battery swaps. Is LIANSUM Power Transformer AC Adapter the right fit for a hardwired smart-door setup?
⚡ At a Glance
- • Power Output: 18V DC at 500mA, matching common smart-doorbell requirements
- • Best for: Homeowners with wired smart doorbells and thermostats seeking permanent power
- • Not ideal for: Devices requiring different voltages or higher current draws
Designed to supply a consistent 18V DC output for compatible doorbells. Long cable and safety circuitry support straightforward permanent installations.
Consistent power supply, with 18V/500mA output
An 18V DC output at 500mA delivers a steady current level matched to many video doorbells and smart thermostats, avoiding voltage dips. The transformer accepts a 240V AC input at 50Hz and regulates output for stable delivery.
Continuous mains power keeps doorbells recording and notifying reliably, removing the need for regular battery charging or swaps.
Flexible installation, with 8-metre cable and two-pin non-polarity wires
A 315-inch, 8-metre cable allows the unit to be placed well away from the doorbell, and two-pin non-polarity wires simplify connections by removing polarity concerns. Designed for wall assembly from an outlet to a doorbell or thermostat.
Long reach makes it easy to plug into an indoor outlet while powering an outdoor doorbell, reducing the need for extra cabling or extension parts.
Protected operation, with safety circuitry against common faults
Special design and materials help control current output and include protective measures against short circuit, overvoltage, overcurrent and overheat. These safeguards aim to maintain safe charging conditions for connected devices.
Safety protections reduce the risk of damage to doorbells and wiring, offering a reassuring, low-maintenance power source for daily use.
✨ The 4 Key Reasons for LIANSUM Power Transformer AC Adapter
- Long 8m cable, Place adapter up to 8 metres from doorbell without extensions
- Wide compatibility, Works with Nest Hello, Ring, Arlo, Eufy, Wyze, Blink, Ezviz and SimpliSafe
- Two-pin non-polarity wiring, Faster, simpler installations without polarity concerns
- Built-in safety protections, Guards against short circuit, overvoltage, overcurrent and overheat
📋 Technical Details at a Glance
- Category: Power transformer AC adapter
- Brand: LIANSUM
- Input: AC 240V, 50Hz, 0.2A
- Output: 18V DC, 500mA
- Cable length: 8 metres / 315 inches / 26 ft
❓ Frequently Asked Questions
Q: Is this compatible with Nest Hello and Ring doorbells?
A: Yes, compatibility includes Nest Hello and most versions of Ring doorbells that require an 18V transformer, along with several other popular brands listed in the description.
Q: How long is the power cable, and can it reach an indoor socket?
A: The cable measures 8 metres, which is long enough to route from an outdoor doorbell to an indoor or outdoor socket if assembled along the wall.
Q: Does the unit include protections against electrical faults?
A: Special design and materials aim to prevent short circuit, overvoltage, overcurrent and overheat, helping to ensure safe charging for connected devices.
🏆 Our Verdict
Suitable for homeowners who want a simple, reliable way to hardwire smart doorbells or thermostats. The mix of 18V/500mA output, extra-long cable and built-in safety protections makes for straightforward, low-maintenance installations. While affordability depends on retailer, broad compatibility and a durable design give practical long-term value.
