Programmable mechanical timer switch makes you life smarter and more convenient. IP53 rating extends the of working environments. Easy to operate, easy to install. Features: Mechanical Timer Switch: Large dial with clear scale, rotate the dial clockwise to adjust time; the driving method is quartz motor. 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. 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. : 150 heat resistant ABS casing, durable and corrosion resistant; Supports IP53 protection level, can put up with harsh environments. 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 dial. Note: 1. Installation should only be carried out by a qualified electrician. 2. Please read the user manual carefully before use. 3. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Grey Material: ABS Voltage: AC 100-240V Frequency: 50-60Hz Battery: 1.2V 40mAh NI-MH Battery Capacity: 20A Power: 2W Time : 24H Minimum Interval: 15min Setting Times: 15min/time, 96 times Reserve: 300H IP Rating: IP53 Item Size: 163 * 113 * 45mm / 6.42 * 4.45 * 1.77in Package Size: 16.5 * 12 * 4.5cm / 6.50 * 4.72 * 1.77in Package Weight: 309g / 10.90oz Package List: 1 * Timer Switch 1 * Battery with Line 3 * Screw 1 * User Manual (English)