Specification ofÿ Solar Polycrystalline(270W-290W) CNBM Solar photovoltaic (PV)module is designed for large electrical power requirements. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar panel offers high performance of power per square foot of solar array.Poly- or multicrystalline silicon(poly-Si or mc-Si): made from cast square ingots ? large blocks of molten silicon carefully cooled and solidified. Poly-Si cells are less expensive to produce than single crystal silicon cells, but are less efficient. US DOE data shows that there were a higher number of multicrystalline sales than monocrystalline silicon sales.ÿCharacteristics of Polycrystalline Silicon Solar Panel I.Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.II.Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.III.EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.IV.AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.V.Junction box: Multi function junction box with water proof.VI.Long lifetime: ò25 years; Less power decrease.VII.Good performance of preventing from atrocious weather such as wind and hails.VIII.Resisting moisture and etching effectively, not effected by geology.IX.The certificate issued by international authority: UL, TUV, IEC, VDE, CE.ÿStandard Test Conditions of Polycrystalline Silicon Solar Panel The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions of multicrystalline silicon Solar Panel, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25øC, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.Advantages of Polycrystalline Silicon Solar Panel? CNBM Solar performance guarantees for 25 years? 12 years guarantee for workmanship for multicrystalline silicon Solar Panel? Timeliness of delivery? Quality Products certified (TšV, UL, CE, VDE, ISO)CNBM International Corporation’s products including Monocrystalline Solar Panel, Polycrystalline Solar Panel ( multicrystalline silicon Solar Panel) have received and enjoyed famous reputation in many countries and regions in the world .As a solar panel manufacturer in China, we strive to provide our customers with excellent service, superior products and unmatched valueÿCertificates of Polycrystalline Silicon Solar Panel ÿTechnical Data of Polycrystalline Silicon Solar Panel CNBM Solar Polycrystalline (270W-290W)ÿPackaging &DeliveryPackaging: CustomizedDelivery:Customized