Ambient power draw of motion sensor light switch?
I have a “Leviton Decora 180 degree manual on occupancy sensor w/locator light” wall switch for use in a closet. The model number is IPP15-1LW.
The point is to automatically switch the power off when the closet light is left on accidentally, so as not to waste power.
However the unit itself draws some power. Does anyone know the actual wattage of this device, or ones like it?
No, but I can give you an educated guess: somewhere between 100 and 500 milliwatts — certainly under 1W.
Even if it did pull a whole watt, you’d use only about 720 watt-hours a month, which is about 3/4 of a kWH, which would cost about $0.07, so I wouldn’t worry about it.
If you care to find out from Leviton what it draws on standby, I’m sure several of us on this forum would like to know. If you find out and tell us, we’ll calculate the cost/mo for it.
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