This is a brand new, unopened item. The price is for one piece. There are 5 in stock, including this one. I am selling these to clear out my inventory. The 5-step indicator displays the dimming level. The reverse-phase dimming method improves compatibility with LEDs. Specifications: Parent unit, compatible with 3-way wiring, compatible with dedicated LED 3.2A, dimming range: (illuminance ratio) approximately 0% to 100% [for incandescent lamps], the following illuminance setting range: (illuminance ratio) approximately 0% to 40% [for incandescent lamps] Type: Touch type, reverse-phase type Operating temperature range (°C): -10 to 40 Rated voltage (V): AC100 Rated frequency (Hz): 50/60 Circuit system: Semiconductor control system (transistor) Capacity (VA): 320 Wiring method: Screwless terminal type (wire insertion type) Panasonic Panasonic Dimming