To activate this switch you will need to work your way past the security system. You must match your colours with the current security colour system. To do this click on the slots of the current highlighted row to rotate the colour lamps. When you are ready to guess, click VALIDATE to see if you have currently identified the current passcode. The column to the right of the lamps will show the number of colour lamps that you correctly guessed. You will need to keep trying colours until you get all of them right. The switch will maintain the same colour code, so if you fail the code will not change the next time you try.