Retrofit your light switch with this remote-controlled device

Product Description

It can be extremely annoying and frustrating to finally get comfortable somewhere only to realize that you forgot to turn off a light, thus requiring a short journey to and from the wall switch. Mechanical engineering student and Instructables user alanmerritt ran into the same problem in his dorm room, so he responded by creating a device that could remotely operate a light switch without any modifications to the switch itself.

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