美国采购需求：电池管理系统、BMS电池、BMS模块、锂BMS、BMS锂电池、Lifepo4 BMS

I'm looking for some affordable options for solar panel plans that could meet the needs of both residential and commercial applications. Cost-effectiveness is crucial for us, as we want to ensure a solid return on investment while also promoting sustainability. If you could provide details about your various plans, including any bulk order discounts, financing options, or warranties, that would be great. Additionally, I'm interested in understanding the specifications and efficiency ratings of your solar panels. It would be useful to know about any certifications they have, as well as their performance in different environmental conditions. Please send over any product literature or catalogs that could help us make an informed decision. Thanks!