5 Random Security Timers - Pack of 3 Posted by John Bray on 24th Oct 2019 In the past I have used ordinary electronic timers to control my house lights when I am away. While such items can be set to give different timings on separate days their settings need to be altered at different times of the year to allow for different night-time hours. These random security timers do away with all that hassle, turning on my lights as darkness falls and then switching off and on at pre-programmed times. Easy peasy! The supplied quantity of 3 is just enough for the average house and I HIGHLY RECOMMEND their use.