LumeNano WHDZ03 Smart Plug, 20A / 3680W, Energy Monitoring

The LumeNano WHDZ03 smart plug is listed with a 20A current rating, 3680W wattage and energy monitoring. It offers app, remote and voice control, plus scheduling and timer features, but the 2.4GHz Wi-Fi requirement and stated load rating should be checked against your appliance and network before purchase.

At a glance

Listing claims a maximum load of 20A / 3680W and energy monitoring in an app.
Use the Smart Life or Tuya app for remote on/off control, schedules and timers, according to the listing.
Voice control is listed for Alexa, Google Assistant and SmartThings.
Bluetooth and Wi-Fi are listed. Setup requires a 2.4GHz Wi-Fi network.

Price

£39.99Save 39%

Reference price: ~~£65.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Energy monitoring and schedules combine usage tracking with timed on/off control.
App, remote and voice control options may suit households using Alexa, Google Home or SmartThings.
A four-plug pack is claimed in the product description, if that pack quantity matches the selected listing.

Technical specifications

12 specifications

Identity and electrical ratings
Brand	LumeNano
Model	WHDZ03
Current rating	20 Amps
Operating voltage	240 Volts
Wattage	3680 watts
Operation mode	ON-OFF

Connectivity and controls
Wireless connection listed	Bluetooth, Wi-Fi
Control methods listed	App, Remote, Voice
Compatible devices listed	SmartThings, Alexa, Google Home
Mounting types listed	Plug In

Dimensions and materials
Dimensions listed	50 x 85 x 60 millimetres
Material listed	Plastic

What to know before buying

The listing claims a 20A / 3680W maximum load, but suitability for a particular appliance is not independently confirmed. Check the appliance's requirements and the selected plug's rating before use.

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title and product description claim a four-pack, while the details field says four items and the included-components field only shows “08”. The 2.4GHz Wi-Fi setup requirement is stated in the feature text, while connectivity details list Bluetooth and Wi-Fi without a band. Confirm the selected pack and contents before ordering.

What’s in the box

Four smart plugsCheck selected pack
08Check selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

People who want app-based energy monitoring and scheduled on/off control for compatible appliances.
Smart-home users who want plug control by app or voice through listed Alexa, Google Home or SmartThings compatibility.
Buyers who have a 2.4GHz Wi-Fi network and have confirmed the plug's stated electrical rating suits their intended appliance.

Less suited to

Anyone needing verified compatibility with a specific high-load appliance without first checking its electrical requirements.
Households that cannot use a 2.4GHz Wi-Fi network for setup.

LumeNano WHDZ03 Smart Plug, 20A / 3680W, Energy Monitoring · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 62 ratings

5 stars72%72%
4 stars15%15%
3 stars7%7%
2 stars0%0%
1 star6%6%

An aggregate rating is available, with ratings mostly in the higher categories but also some lower ratings. With no written customer feedback supplied, these figures do not establish particular strengths, complaints or reasons for satisfaction. Treat them as limited context rather than evidence of load performance, connectivity reliability or energy-monitoring accuracy.

Frequently asked questions

Does this smart plug monitor energy use?

The listing claims that the app can show real-time power use and electricity consumption. It does not provide measurement accuracy details.

Which Wi-Fi network does setup require?

The feature text says setup requires a 2.4GHz Wi-Fi network. The connectivity field lists Bluetooth and Wi-Fi without specifying a band.

What is the stated maximum load?

The title and product description claim 20A and 3680W. Check the appliance requirements and selected listing before relying on that rating.

How many plugs are included?

The product description claims a four-pack, but a separate included-components field says “08”. The package contents are unclear, so confirm the selected listing.