No rewiring required This wireless light switch kit lets you upgrade to wireless control without removing existing wiring or fixtures, making installation quick and hassle . Long distance control Operate lights up to 660 feet outdoors or 100 feet indoors with a 433 MHz RF signal that penetrates walls and doors for reliable control from virtually anywhere. Expandable system Easily add multiple wireless switches in the same space to build a scalable control network without interference. Compact receiver design The receiver is small and discreet, measuring 83 x 1.5 x 0.83 inches, fits neatly in a junction or switch box, and is rated for more than 400,000 operations. Practical applications Ideal for porch or patio lighting controlled from inside or from outside, garage or workshop lighting with convenient wall switch access, and long hallways or multi room setups that benefit from additional wireless controls. Compatibility and performance Works with standard lighting circuits and existing fixtures, delivering reliable, maintenance friendly control without major alterations.