MaxxAir fan, previously used extensively in a van. This unit was designed to be used with a remote, which is currently not included. If you are using this in a small space that may not matter. While the fan does currently run when hooked up to a 12V power source the fan lid is missing a spring that helps it open when turned on. The lid can only open with power, not manually. If you are a tinkerer and want a deal, this may be the unit for you. Includes mounting flange, mounting screws and owners manual.