The new Sunnata accessory switch allows you to expand the use of your existing Sunnata (STCL-153MH-xx only) and its advanced LED+ dimming technology to create 3 way and multi location applications. Control one light from two locations using the dimmer (sold separately) to dim and the accessory switch for on/off switching control. Add more accessory switches to control from up to 10 locations in a multi location application. Tap the switch once for your favorite light level, set by your Sunnata dimmer, and twice for full brightness. The smooth fade on and fade off allows your eyes to adjust comfortably to your determined light level; push and hold for 30 second delayed fade-to-off. Single tap for your favorite preset light level or double tap for full brightness; push and hold for 30 second delayed fade-to-off. No neutral required, wallplate sold separately.