美国采购需求：生活热水器、空气能热泵、泳池加热器、直流变频热泵、EVI热泵、泳池加热器

I'm interested in sourcing solar heaters in a sleek black color. Please let me know if you have various models available, along with their specifications and pricing details. It would be great to understand the features that differentiate your products from others in the market. Additionally, could you provide information on the minimum order quantities, lead times, and shipping options? If there are any ongoing promotions or bulk purchase discounts, I would love to know about those as well. Looking forward to your prompt response!