Timeguard zv215 programmable security light switch timeguard zv215 p the timeguard zv215 programmable security light switch is the double switch version of the zv210 order code 23 9165 it has all the features and benefits with an additional switch for manual control only of another light p p programmable security light switch will turn a light on automatically when it gets dark and can be programmed to turn off again up to approximately 8 hours later easy to install and op