This module is basically a simple timer circuit connected to a relay. There are 18 different modes of operation. Please refer to the documentation below.

Simple usage examples:

Example 1: Turn lamp ON for 12 hours and then turn OFF for 12 hours. Repeat forever.

Example 2: When power is applied turn motor ON for 1 hour and then turn OFF for 10 minutes. Repeat 5 times and then turn OFF.

Example 3: When CH1 button is triggered then turn motor ON for 30 minutes then turn motor OFF.

Relay specifications:
0-30VDC @10A
0-250VAC @10A 

Operational requirements:
Supports 5VDC, 12VDC or 24VDC (See documentation below for details)

Documents:

https://docs.google.com/file/d/0B2lE0nuxkO4cVTJnLWcteUVneUU/edit?pli=1