Has just dropped again to $10 (from $15).
Edit: also 3.5% cash back with Cash Rewards
https://www.ozbargain.com.au/node/542929
Control electronic devices remotely via installed App on your smartphone or tablet. It can be paired with Amazon Alexa or Google Home to command devices using your voice. Compatible with Android and Apple devices.
Features:
Scheduling
Remote access via APP (smart life APP or TUYA APP)
Timer
Away mode
Voice control with Amazon Alexa or Google Home
System Support: Android/IOSPackaging Dimensions (L x W x H):
4.5 X 2.7 X 6.4 cmWeight:
70g
There's a max number of devices you can run via wifi before the network goes to shit. I have 30 hue lamps plus switches and about 40 wifi devices (which is pushing it). Adding 30 wifi lamps would kill the network, not to mention most require internet access to function. If I had the funds, I'd ditch my wifi switches and smoke alarms for zwave without hesitation.