60-cells module 265W 270W 275W 280W 285W High Efficiency Poly Technology with advanced 5BB design to improve power output Our most versatile product compatible with all major BOS components and system designs 1000V UL/1000V IEC certified Maximize limited space Up to 174W/㎡ power density Highly reliable due to stringent quality control Over 30 in-house tests (UV, TC, HF, and many more) In-house testing goes well beyond certification requirements Certified to withstand the most challenging environmental conditions 35 mm hail stones at 97 km/h Complete System and Product Certifications ISO 9001: Quality Management System ISO 14001: Environmental Management System OHSAS 18001: Occupation Health and Safety Management System To find the right answer, request several free quotes to different solar installers, some with high-efficiency solar panels and others with conventional modules. They will include the cost of the system, the energy yields, and the savings per year in their feasibility report. Based on several reports, you will be able to choose the solar panels that better suit your needs and budget. There are different types of solar panels that, depending on the solar technology, deeply influence the efficiency values. Crystalline silicon solar cells are conventional technology in the industry and these, can be at the same time divided into two main types: polycrystalline and monocrystalline.Polycrystalline silicon solar Panel products are ideal for large ground-based power stations. Also for roof top on/off grid solar power system.Q: Do you provide samples ? is it free or extra ? A: Yes, we could offer the sample for free charge but do not pay the cost of freight Q: What is your time of making samples? A: Usually we will take 6~10 working days to make the samples. Q: What is your delivery time? A: The time of delivery is 7-10 working days for first loading after we receive the deposit. Q: What is your main products? A: Our main products are Polycrystalline silicon solar module,residential power inverter, and also we offer OEM services.