Buying Guides

Solar Panel Warranty Explained: 12-Year Product vs 30-Year Power Warranty Almost every commercial solar datasheet advertises two numbers: a product warranty and a power warranty. They cover different risks, run for different periods, and are judged with different evidence. This article explains the difference using the actual terms printed on four datasheets we supply, so…

Bifacial Gain Explained: What 5, 10 and 20 Percent Rear Irradiance Actually Deliver Bifacial marketing often says \”up to 25 percent more power\”. The number is real, but it is not a property of the module alone. It depends on how much light reaches the back, the bifaciality of the cells, the mounting height and…

Solar Panel Scams: Real Cases and a 12-Point Buyer Checklist Trust in a wholesale purchase is not built by a slogan. It is built by documents, traceable serial numbers and payment controls that can be checked before money leaves the buyer account. This article lists reported cases from the trade press, then turns them into…

Trina 665W vs Jinko 620W vs LONGi 650W: A Datasheet Comparison These three modules show up in the same tender shortlists, but they are not interchangeable. One is a large-format bifacial module, one is a lighter bifacial module, and one is a high-efficiency monofacial module. The table below uses the manufacturer datasheets we supply, namely…

How Many Solar Panels Fit in a 40HQ Container? Real Numbers by Model Container quantity is one of the first things a distributor needs to know, because it sets the freight cost per watt. The answer is not a single number. It depends on module size, pallet packing and the carrier weight limit. The figures…