The first step in doing a DIY inverter install on your boat is to find a 12 VDC source. This is usually a big red wire. A battery switch is a good place to find one. Don't worry at all about it shorting against the common leg of the switch. That thin plastic coating on the handles of the clip is there to insulate them. It looks fine, and is color coordinated. The clip has the appearance of permanence, requires no expensive special ;tools to install it, and has the panache I like to see in a marine electrical installation. You won't need any of those dangerous and unsightly restraints like tie wraps either.