Mechanical Timer Switch: Large with clear scale, rotate the clockwise to adjust time; the driving method is quartz motor. High Quality: 150℃ heat ABS casing, High quality and ; Supports IP53 conservation level, can put up with harsh environments. Easy Installation: With mounting hole, the time switch is intended to be incorporated into equipment/ built-in control box, etc.. Compact size and light weight make installation easier. Easy Operation: 24 hours timer, with manual switch, supports program timing (turn on/ off automatically according to the schedule) and permanent ON/ OFF. Built-in battery for reserve. Wide Use: For street lights, ventilation, fountains, advertising hoarding, production equipment, broadcasting and television equipment and more. Transparent Dust Cover: Dustproof and waterproof, prolongs service life. Transparent design has no effect on viewing the .