Can i use this with a lamp that already has an inline dimmer switch? So it can be controlled via the existing switch and the app?

Almost certainly not. It does depend on the type of existing dimmer fitted to the lamp, but if it's electronic, it won't work as you seem to be seeking. The wifi switch will be able to switch the lamp on and off, but the "dimness" will only be controlled by the existing dimmer. There is a very slim chance, if the lamp is very old, that it might have a rheostat instead of an electronic dimmer. If that is the case, it might be possible to set the existing dimmer to max brightness, and then control dimming from the WiFi dimmer, but it's pretty unlikely that your lamp has a rheostat dimmer - I haven't seen one in 50 years.

Does this have power monitoring?

No. It's a voice (Alexa) controlled dimmer switch.

Have double checked everything and this will not connect to wifi any ideas or anything else I can try?

You need to set your router to 2.4ghz

Could I plug a double socket into it and run two sets of festoon lights from it and still be dimmable?

Yes, provided the combined wattage is within the maximum for the unit.

C310 | Desertcart Cook Islands

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NZ$324

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Sold byAmazon Cook IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Dim smarter, live brighter — your lamps just got a glow-up!

VOICE APP MASTERY - Hands-free Alexa and Google Assistant commands plus full remote control via Smart Life app.
HUB FREE WI FI CONNECTIVITY - Connects directly to your 2.4GHz WiFi—no extra hubs, no clutter, just instant control.
COMPACT SAFE SPACE SAVVY - Slim UK plug design fits tight sockets without blocking neighbors, CE & RoHS certified for peace of mind.
SEAMLESS SMART LIGHTING UPGRADE - Turn any dimmable lamp into a smart ambiance creator without buying new bulbs.
DUAL MODE SETUP FOR ULTIMATE FLEXIBILITY - EZ Mode for lightning-fast install or AP Mode for tricky router environments—smart home made simple.

The Candeo WiFi Smart Dimmer Plug transforms your existing dimmable LED and incandescent lamps into fully controllable smart lights with 0-100% dimming. It connects directly to 2.4GHz WiFi without requiring a hub, supports voice commands via Alexa and Google Assistant, and offers flexible dual-mode setup for easy installation. Its compact, CE and RoHS certified design fits standard UK sockets without blocking adjacent outlets, making it a sleek, safe, and efficient upgrade for any smart home.

Specifications

ASIN	B09627LM8V
Amperage	0.87 Amps
Best Sellers Rank	106,491 in DIY & Tools ( See Top 100 in DIY & Tools ) 135 in Smart & Remote Controlled Plugs
Brand	Candeo
Colour	White
Connector Type	UK/European electrical plug
Country Of Origin	China
Customer Reviews	4.0 4.0 out of 5 stars (145)
Included Components	Wifi dimmable plug, Instructions
Item Dimensions D x W x H	3.3D x 5.7W x 5.7H centimetres
Manufacturer	Candeo Smart Ltd
Manufacturer Part Number	C310
Material	Plastic
Model Number	C310
Number Of Wires	3
Number of Items	1
Number of Poles	2
Plug Type	Type G
Specification Met	CE, RoHS, UKCA, WEEE
Unit Count	1 count
Voltage	230 Volts (AC)

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