印度采购需求：控制器逆变器、发电机、水平风力涡轮机、太阳能电池板、垂直风力涡轮机、风力涡轮机玩具

I'm looking for a comprehensive price list for your products ranging from 500W to 20kW. Could you please provide detailed pricing information, including any bulk purchase discounts or promotional offers you might have? Additionally, it would be helpful to know the specifications and features of each model within this range. I'm particularly interested in understanding the differences between the products to make an informed decision. Looking forward to your prompt response!