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 information regarding your black product options. Specifically, I'm interested in understanding the various materials, available sizes, and features you offer. It's important for me to assess the quality and durability of these items since they will play a crucial role in my upcoming projects. Additionally, could you provide me with pricing, bulk order discounts, and lead times for delivery? It would be great to know if there are any exclusive models or variations in black that I should consider. I'm eager to explore potential collaboration opportunities, so any catalogs or detailed specifications you can share would be highly appreciated!