The OPP20 is the latest addition to the Leviton Power Pack family, delivering a wide array of switching solutions in a single unit. Submitted for stringent testing, this robust Power Pack line is designed to deliver unmatched performance. The OPP20 line features robust and reliable mechanical latching relays, exclusive fail-safe circuitry, daylight harvesting, bi-level switching, and is configurable for energy code requirements (CA Title 24, ASHRAE 90.1, NYC LL48). Exclusive Leviton High Inrush Stability (H.I.S.™) circuitry is specifically designed to handle high inrush electronic ballast loads and offer unmatched durability and service.