You can use the radio button widget and add State definition to it as 0 and 1 for ON and OFF respectively , you can add style as well
for the selected value of radio widget , then you bind your value 0 or 1 to radio button widget on any event or mashup load it will show
the selected value as ON or OFF . You can make it read only as well if you do not want user to change the current state of button(ON/OFF)
Hope this helps ...!