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Every time I get home, I need to find the switch in the dark to turn on the light. Sometimes it takes a long time, and so do my roommate. We both want a device that can detect our voice when we come home. "Hi! I'm Home!"  Like a family member or robot welcome you to turn on the light automatically for you!

When we are out but forget to turn off the light, we can also use SMS to remote control to turn off to save energy.

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