X-10 PRO XPDI3-IW 120VAC Three-Way Dimmer Switch

I have this X-10 PRO three-way dimmer switch still in the box. It's model XPDI3-IW, rated for 500W incandescent or 400VA inductive loads. It's the ivory/white version and works with standard 120VAC home wiring. New in box, just clearing out some extra home automation gear.