Targeting residential market applications, all-black CS6K-M monocrystalline module and all-black CS6K-P polycrystalline module feature black frame and backsheet as well as dark cells. Monocrystalline CS6K is offered in 255, 260, and 265 W power classes, while polycrystalline CS6K comes in 250 and 255 W power classes. While efficiency on monocrystalline module is rated at 16.19%, polycrystalline module efficiency is rated at 15.58%.