One time I experienced a power outage when I was not at home. As a result, my 2 yeelight color bulbs was switched on by themselves. I would like to beg Yeelight staff to implement an On/Off default state in Yeelight app setting (If it is possible of course). Currently we already have the lighting condition default state so It would be great if we could set ON or OFF as a default state. Such feature will prevent from wasting uselessly energy.