Smart Thermoregulation: Automatically adjusts fan speed based on collaboration temperature, stopping overcooling otherwise insufficient ventilation Strong Durability: Constructed with immune and waterproof ABS substance, this fan set operates dependably in harsh conditions Efficient Refrigerating Executparticlemail: The 20W solar double fan set furnishes consistent refrigerating for chicken cooperatives, effectively reducing indoor temperatures even in hot season Green Photovoltaic Powerebog: More accessible solar power with denial extra electrical associations, this fan set reduces carbon output. Constructed of permanent ABS substance Tool Complimentary Installatparticlemail: Direct current establish lacking tools, saving time and effort, Manufacturer: Zeizafa