This circuit is Timer circuit board which you can set timer to turn off  within 15ninutes to 10 hours.

Technical information:
- Need Power Supply 12VDC
- Current consume 50mA / Standby current below 1uA
- Maximum Load 5A / 240VAC
- Mode 1 : Select the time by selector switch 15minutes / 30 minutes / 1 hour / 2 hours / 3 hours  / 4 hours .....  10 hours ( Mode 1, Remove / cut Jumper J1 on board )
- Mode 2 : Select the time by selector switch 7s / 14s / 21s / 28s / 38s / 42s /49s /56s /63s /70s / 15minutes / 30minutes ( Mode 2, just short jumper J1 on board )
- Start / Stop button,  to start timer and stop timer
- PCB Size : 2.76" x 3.13"

Example:  You want to turn on your radio at your bed but don't want to wake up to turn off your radio this board can help you turn off automatic after 30minutes. Depend on how much time you do set.

In case,  you want to start the timer automatic without any touching on the start button, please let us know that you want this function, we can do modification for free.

Download User Manual