Detail:
• The timer switch device can be connected to a device using voltages from 1 to 220 volts AC or DC up to 300 watts total. The time interval can be easily adjusted with the included Potentiometer from 0-3 hours.
• Can be used to turn devices on or off for the timing period.
• Can be set up to automatically start the timing on Power Up or by a manual start switch
• Timer Can be stopped with included stop switch
• Potentiometer and / or Start, Stop switches can be remotely located
• Power supply : 12V DC.
• Recommended housing : FB04
• PCB dimensions : 3.0” X 1.8”

Kit comes with complete with circuit board, components,  instructions. Requires basic soldering skills and a 15 to 30 watt soldering iron. Solder is included

Another great kit to have fun with from Bakatronics

Have fun, that's what it's all about.