SINOTIMER TM919B-2 220V 30A Programmable Digital Timer Switch Automatic Cycle Timing Controller1. TM919B (30Amp load) DIN rail 7 day 24 hour programmable switch timer can automatically turn on and off various electrical equipment at preset times. 2. Widely used for 7 day programmable control of street lights, neon lights, signs, lamps, water heaters, air conditioners, billboards, rice cookers, boosters, sprayers, bottling machines, preheaters, agricultural facilities and broadcasting equipment. 3. Built in 1. 2V 40mA rechargeable battery for