How do I know which side is ON or OFF? October 09, 2017 21:01 The ON is the switch down and OFF is the switch up. Related articles I just received LugLoc and battery is not charging? My LugLoc LED light always shows red after pressing the system check button. I have fully charged. My on/off switch is not working /fell out Does the LugLoc interfere with Avionics? What is the meaning of the led light color?