ITEM NAME:DC 12V Infinite Delay Timer Switch Relay Module Reliable new hot asd Descriptio n Description: It is a timer relay module with high precision, stable and reliable performance. simply switch mode by adjusting the jumper. There are many voltage and time range for your choice, both "on" time and "off" time are adjustable. It is great to control the reciprocating stroke, or repetitive power on and off for equipment and products burn-in test. Widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc. Specifications: Material: PCB board Color: blue + green Size: 70 * 20 mm Package Included: Product list: timer relay module *1 Note: 1.Due to the manual measurement and different measurement methods, please allow 2-3cm deviation. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ DC 12V Infinite Delay Timer Switch Relay Module Reliable new hot asd.Simply switch mode by adjusting the jumper. Material: PCB board. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Color: blue + green. We'd like to settle any problem in a friendly manner.