Ideal for owners, greenhouse growers, warehouse managers, and homeowners seeking ventilation without electrical dependency ensures year round reliability, yet robust solar ventilation for 110mm duct systems in harsh environments Optimizes in sun spaces like security, workshops, and livestock, activating within of exposure Features resistant stainless steel construction and brushless motor for, maintenance management across, greenhouses, and agricultural buildings 110mm Roof Ventilator with 8W Panel Energy efficient, wiring / battery needed, automatically operates under sunlight for quiet exhaust ventilation in kitchens, bathrooms, and pet houses, Manufacturer: BULAIDAI