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Old 12-15-14, 02:34 PM   #8
SDMCF
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Quote:
Originally Posted by bennelson View Post
This thread got me wondering - "How much energy does the motion sensor use?"
Not much. Back in the summer I went through an exercise of tracing all loads. I turned everything off and a whole-house meter still showed some usage. I was able to go round finding a few things that were on that I hadn't thought about, and saved quite a bit. Eventually I traced everything and got the usage down to showing nothing on the meter ... except that I completely forgot about the outside motion sensor lights until I just read this thread. I have 2 floods outside on motion sensors (one halogen and one LED). They were on[*] the whole time, but didn't use enough to register in my audit.

[*] When I say "they were on" I mean the motion sensors were on but not the lights

Last edited by SDMCF; 12-16-14 at 12:48 AM.. Reason: Add clarifying footnote
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