Lit Coolers Heavy Duty Night-Sight Cooler Night-Sight technology fully illuminates the contents of your cooler with an unbelievably bright, removable/rechargeable LED liner. Exclusive, patent-pending logo plate and window allow for endless personal customization Heavy-duty, roto-molded construction means this cooler is built to last. 2  inch thick lid and easy release rubber seal to ensure the goods stay chilled.