DESC: The BL-6133-LA Wireless Add on Switch provides the ability to add light switch control to any wired light without new wiring. Simply replace the existing wall switch that controls the light and mount the wireless wall switch in a new location. The wireless wall switch operates the wired wall switch within 100 feet to turn lights ON and OFF. The wireless wall switch requires a 9 volt battery, not included. Each wired wall switch controls 500 Watts incandescent lighting and fits inside standard wiring boxes. Available at The Home Depot. Lighting