case of 4 Three-way, 15 amp, 120V, Single pole, back and side wire CERTIFIED FOR HUMANS: Smart home made easy for non-experts. Setup with Alexa is simple. EASY INSTALLATION: Frustration Free setup - just turn on your device and set up is simple using the Alexa App; LED indicators confirm proper installation making your setup experience SCHEDULE/ROUTINES: Schedule your lights to adjust when and how you want for convenience and safety to help make your schedule easier: good morning routines, welcome home from work routines, create a movie night routine and more!