斯里兰卡采购需求：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 interested in purchasing coreless wind turbine generators that have a power range of 100W to 50KW. Specifically, I'm looking for models that can operate effectively at low start speeds, ensuring minimal noise production during their operation. This is particularly important for my project, as we aim to maintain a quiet environment while utilizing renewable energy solutions. Could you provide me with detailed specifications, pricing, and availability for these wind turbine generators? Additionally, I'd like to know about any warranty options, installation requirements, and the expected lifespan of the products. Looking forward to your prompt response with all the relevant information to help me make an informed decision. Thanks!