1. Mechanical Timer: Large dial with clear scale; quartz movement automatically starts within a few minutes after power on. 2. Easy Operation: 24-hour timer, with manual switch, supports program timing (automatically turn on/off according to schedule) and permanent on/off. Built-in battery for backup. 3. DIN rail installation: convenient to assemble and disassemble, flexible to use. Compact size and light weight make installation easy. 4. Transparent dust cover: Dustproof and splash-proof, extends the service life. The transparent design has no effect on the viewing of the dial. 5. Widely used: for streetlights, ventilation, fountains, billboards, production equipment, broadcasting and television equipment and more. For use in dry indoor locations only.