Top positive review
Cheapest and can (with some effort) be made to work with Apple Homekit
Reviewed in Australia on 15 June 2019
The trick to getting these to work with Apple Homekit is to run a "homebridge" on an always-on computer (e.g. a Raspberry Pi) and add the homebridge-ewelink-max plugin. You'll need a bit of computer setup skill to do it.