Lights For Low Ceiling Basements - There are several approaches to help avoid moisture damage issues at a basement. The first rule of thumb is no dirt basements. Although these are somewhat less prevalent in this day in age, it's good to point out that dirt floors not just hold a huge amount of moisture but also can give off a variety of gases. When building a basement, make sure you have a floor drain with a trap installed in the lowest point of the floor.
Without a floor drain, any water that's spilled inside can't get out. Sump pumps are often used where flooding due to a high water table may be a issue. In addition, waterproof the outside of the foundation walls and install a perimeter drainage system. An often overlooked problem in bathrooms is moisture that comes out of humidity.
The simplest way to control humidity is to exhaust water vapor generated in the house to the outside. Indications of high humidity comprise condensation on walls, pipes or other surfaces as well an overall sense of moisture from the air, dampness, and odors. Many times, the humidity is going to be caused by exposing the basement to external air (open windows), having wet laundry hung to dry from the basement, storing firewood from the basement, or a drier vent that exhausts indoors.
In warm, humid weather, keep basement windows closed. The real key to keeping basement humidity low is to keep them well ventilated and keep additional moisture out of the basement.