The Q.PEAK DUO L-G7.3 module from Qcells is engineered in Germany and designed to last. This module is made of monocrystalline PERC cells and utilizes proprietary Q.ANTUM DUO half-cell technology with an advanced 12-busbar for improved output, wired in a split-panel configuration to minimize power loss from shading. This module provides a maximum 395 watts and boasts an impressive 19.6% efficiency under standard testing conditions. The Q.PEAK DUO L-G7.3 is backed by a 12-year product warranty and 25-year linear performance warranty.