The perfect solution for blocking out sunlight and UV rays to keep you cool, comfortable and well lit, day and night. Fully retractable, spring loaded roller shade with secure "snap-lock" closure blocks light to help maintain interior temperature and prevent early wake-up. Cool white LED lighting provides illumination when the shade is closed. Shade material has a reflective backing to block light and reflect heat. Will not interfere with the normal operation of a roof vent or powered ventilation fan. Easy installation using existing garnishing ring. Blocks light & reflects heat LED lighting Maintains inside temperature | Maxxair MAXSHADE PLUS with LED Lighting in White