Sharon and I had a couple exterior lights we loved to have on periodically. One light was on our garage and the only switches to it were in the garage. The other light was on our breezeway. More often than not we would forget to go outside and turn off the garage light. I found these programmable switches by Honeywell online. My neighbor liked it so good I installed one for him this weekend. We like them so good, I'm sure we'll find other applications for additional switches.