Having exterior lights is a great idea to increase the security of your home at night. But, there are definite downsides to leaving lights on all night: Burning the midnight oil! Electricity costs can be high for high-wattage incandescent lights. Even halogen floods can be costly when run for 8-10...
By: 247homesecurity
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from Instructables: exploring - technology - robots http://ift.tt/1P9Z7fP



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