Digital time selectable timer module

These neat little modules let you select the time from 10 seconds to 24 hours, as per the data in the instructions.

Specs:
Supply voltage: 3.3 to 18V DC
Current output: 3V/300mA; 5V/200mA; 9V/100mA
Can drive 3V, 5V, 12V relay/LED and so on directly (within current limits above)
Size: 18.7mm x 18.7mm x 7.4mm not including pins

Note that by default, the output goes high when the timer is triggered. To trigger the timing cycle, take the input pin to ground. Output and input modes can be changed by changing the solder bridges on the back of the PCB at the corresponding places.