The Bivert Board allows the Contrast of the DMG or GBP to be sharper, and inverts the pallet. The kit has an option to be switched between normal and inverted, or installed inverted permanently. Another bonus of this kit is that you dont need an oversized and expensive DPDT switch, and is designed for a SPDT switch. An installation tutorial will be available soon. total installation time is about 45 minutes, max.