Rated for multiple fixture area lighting dimming. Robust aluminum housing. Continuous voltage control from 0 to 100% of input voltage. Last setting memory - Power returns to previous setting with optional ON/OFF switch. Supports multiple switches in different locations. -20¦C to +85¦C operating temperature range. Water resistant, sealed housing. Operates on 10 to 32 Volt DC systems. Requires SPDT momentary (ON)-OFF-(ON) switch such as PN 8216, 8291 or 8208.