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 am interested in acquiring small wind generators designed for home use, specifically 400W and 600W models. I would like to know more about your available options in this category, including specifications, features, and any certifications they might carry. It's essential for me to understand how these models perform under various conditions and what sets them apart in terms of efficiency and durability. In addition to the technical details, please provide pricing information for both power levels, including any bulk purchase discounts if available. Shipping options, lead times, and payment terms would also be appreciated. I'm looking to make a decision soon, so timely feedback would be great! Thank you.