Save energy with a click of the mouse simply connect the stick to the usb port of the computer to begin programming set the heating and energy saving periods on the pc and simply transfer the stored room profiles to the energy saving controllers via the stick you can programme up to 4 heating times per day please note the basic energy saving controller program begins at 700 at 21 c and changes to 16 c after 2200 the usb programming stick progmatic is only necessary if you want to ch