The timer is suitable for all installations or devices with 12 V DC power supply. Advanced setting with one week in advance, digital electronic timer with daily and weekly programs, 15 program combinations daily schedule of your choice. Repeat program with on/off setting 17 Technical data: voltage: 12V DC. Amperage: 16 A. Power consumption: less than 1 W. Internal battery: 1.2 V/40 mA (rechargeable battery). Dimensions: 60 x 60 x 32mm. Power failure memory: 60 days. Operating temperature: -10 to 40C. shorter switching: 1 minute. Push button: clock, stopwatch, day, H+ (hour), M+ (minute), manual control, reset. Features: With the digital timer you can control the operation of your electrical devices such as lamps, water heaters, boilers, sprayers, agricultural installations, radio equipment, household appliances and much more. The digital timer can work with 4 separate power supplies: with 12V DC, the output format can be free. voltage or be stolen. Advanced setting with one week in advance, digital electronic timer with daily and weekly programs. 15. combinations of daily programs to choose from. Repeat program with on/off setting 17. Box contents: 1 x switching relay. 1 x Instruction Manual. Note: Other items are not included, the color is based on the first picture, and other pictures only show the effect Due to differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!