We are offering rtc based timer switch. the tm-619 timer switch can open or close many kinds of electrical apparatus and power automatically. As per the pre-set time, the timer based on real time clock, rtc, can be used to operate streetlight, neon light (sign), billboard, electrical appliances, broadcast equipments etc., features and benefits:digital 24hr, 7 day timerdigital electronic timer switch with daily and weekly programs8 or 16 events per day, 7 day programming blocksone channelled power indicatorlcd displaymanual on/off/auto24 or 12 hour formatbattery backuppower supply: line voltage 12v dc/ac, 24v dc/ac, 110v ac or 240v ac 50/60 hzcontact rating: 16a resistive8a inductive/250v, 0.5hp/250vown power consumption: 3vatiming resolution: 1 minute