Directional reflective film is a high-reflection material offered by Zenithnano. Adopting the principle of metal magnetron sputtering, Zenithnano uses thin metal coating to replace traditional glaze coating. It addresses the poor adhesion issue of conventional directional reflective films. The film maintains light conversion efficiency while delivering favorable metal adhesion and insulation. With the incorporated metal layer, the product achieves a reflectivity of up to 85%. The power output is improved by more than 3W compared with glaze-coated counterparts. It also reduces the risk of module self-breakage and extends module service life.