Trina Solar TSM-DE17M (II)-450W solar panel review and full specs: 450W power output, 20. 60% efficiency, Monocrystalline cells. CAUTION: READ SAFETY AND INSTALLATION INSTRUCTIONS BEFORE USING THE PRODUCT. Speci cations included in this datasheet are subject to change without notice. The right of nal interpretation belongs to Trina Solar Co. STC: Irradiance 1000W/m2, Cell. weight for easy handling. *Measuring tolerance: ±3 %. Boost performance in warm weather with low temperature. The Trina Solar Vertex S+ series are modules designed for rooftops, where yield, durability, and aesthetics are key factors. The key here is the 144 half-cut architecture – lower resistive losses translate to more stable performance in hot conditions and better tolerance to.