Add or relocate a switch to your lights without pulling wire to the switch location, quick installation and save labor and material costs. Easy remodel lights controls for pull-chain light fixture, cupboard lighting, ceiling lights, old house, or anywhere you want to add a switch. The receiver must be connected to a neutral wire to be used; if there is no neutral wire in the switch box, it needs to be installed in the lampshade. Create multi-location switching applications (2-way or 3-way switch), control house lighting from multiple locations. Such as 2-way switching for staircase, basement, garage, outdoor, attic, hallway, loft, kitchen lighting. Note: buy one kit plus one external Acegoo wireless switch thus you can create 2-way switching; buy one kit plus 2 external Acegoo wireless switches to create 3-way switching. No electric leakage, no shock, fit to damp environments. Kinetic self-powered switch requires no batteries or external power connection, making it safe for children to touch and ideal for damp environments like outdoors, kitchens, and bathrooms (IP66). Encrypted wireless signal ensures no signal interference and secure connections. You can have one switch control multiple lights or multiple switches control one light. Outdoor transmission distance up to 300 ft, indoor use up to 100 ft. Small receiver easily fits in electrical boxes, light canopies, or junction boxes. Compatible with CFL, incandescent, fluorescent, LED, ceiling fans, electronics, or appliances. Standard load is 10 Amps, max support is 15 Amps. Separate receiver and switch are also sold for more control combinations.