NO BATTERIES! NO WIRES! Make your Home Smarter, Safer and More Secure with the Lightning Switch wireless/batteryless home and building control system. wireless light switch is a self-powered lighting control solution that truncates the time needed for installing light switches and completely bypasses the setbacks embedded in any impervious wall. Installers never have to worry about running copper to the switch and home/business owners never have to worry about replacing batteries. once installed (very easy-to-do), the home or business becomes fitted for the benefits of advanced lighting control