Saw the Bing Lee deal and had a look - not a bad price for the HS100/HS110 smart plugs.
HS 100 - $23.20 (Product Information
The TP-Link Smart Wi-Fi are easy to set up, and make it even easier to manage your household electronic devices anywhere in the world with a tap of your smartphone.
With a tap on your smartphone, you can easily turn off the lights and other devices in the living room without getting out of bed, or conveniently schedule all lights to go off by midnight.
You can pair the Smart Plugs with Google Home or Amazon Alexa for voice control. And the free Kasa app lets you run them from any Android ( 4.1 and higher ) or iOS ( iOS 8 and higher ) smartphone.
HS 110 - $31.20 (Product Information)
The HS110 Smart Wi-Fi Plug comes with energy monitoring, allowing you to monitor real-time and historical power consumption for your connected electronics through the Kasa App. Receive weekly and monthly summaries to define which devices are using the most power. Closely monitoring power-hungry devices can help you better manage energy usage in your home, ultimately saving you money.
They are selling a 2 x HS 100 kit, but @ $59 it's $47.20 with the code, which is more than buying 2 off the single plugs ($46.40)
I haven't bought any myself yet guys - so don't buy them all on me!