... 80 % efficiency 3,Competitive price :0.65--0.8usd/w Poly Solar panels:1,TUV ,CE, RoHS ,ISO900.2,Warranty: 25 years ... 9usd/wWarranty:6 years Product warranty10 years 90% of power output25 years 80% of Power output TypeBLT240P-30Maximum power (watt) W240WProduction ... 20yesr 85% of the powerPriceFOB Ningbo USD/WDelivery Time20 days after placing the orderPaymentT/T or L/C 240W poly solar panels with TUV ...