Sunforce 81300 Stainless Steel Solar Vent Solar powered ventilator and helps reduce condensation and humidity Provides silent and secure ventilation making it ideal for RVs, trailers, boats, garden sheds, greenhouses and more Features include: a stainless-steel cowl that helps clear out the hot air from the atmosphere, an on/off switch for added convenience and a light with lumen output of 92. Prevents mold and mildew Completely weatherproof and easy to install-no wiring required!