Ventilite SOLAR FAN KIT - If you have a standard ventilite fitted to your boat then you can convert it to a solar fan ventilator with this drop in fan kit. Fits all Tannoy, Delmar and ECS ventilite deck ventilators. Boats fitted with ventilites have increased year round ventilation without using any power source provided by the boat. The motor & blades are driven by the solar cell which will run during normal daylight hours, to assist enormously in dispelling dampness, condensation, smells etc. Depending on weather conditions, the fan will displace up to 22.66 cu.m. air per hour. Kit Comprises: Solar Unit, clear plastic cover, fixing screws. Cut out dia. 9.5cm