The device is a time relay that works in cyclic mode - work, pause, work, pause, etc. The operating time (relay is on) and the pause time (relay is off) are set (The two times are independent, ie be regulated separately.). The time is from 1 second to 9999 second. 
When the power is switched on, the relay is switched on and the LED lights up ON (work), after the time has elapsed, the relay switches off and the LED goes out (pause). After the pause time has elapsed, the cycle repeats. 
Parameters: 
Supply voltage: AC 220V or DC 12V / 0.2A. The device works with only one of the two voltages! 
Output: Relay with normally open and normally closed contact - max. 5A / 240V. 
Relay contact: 
- Normally open contact - NO. 
- Common contact - COM. 
- Normally closed contact - NC. 
Relay: 15А/125V AC, 15A/24V DC, 10A/250V AC. 
Four control buttons (for setting times and resetting). 
Operating time - from 1 second to 9999 seconds. 
Pause time - from 1 second to 9999 seconds. 
Energy independent memory. 
LED indicator for switched on relay (work mode). 

Attention !!! 
Observe all rules for safe operation with high voltage when installing the device. 

This product is fully assembled and tested, with a box. 

The appearance may differ from the one in the photo without changing the parameters of the product (This means that there may be a difference in the elements used (appearance, placement, color, shape or value)).