Sunoptics® skylights provide an energy efficient way to properly illuminate the interior of your home. The manually-venting option allows the added benefit of natural air ventilation. Sunoptics prismatic designs provide up to 50 percent more light than traditional white-bubble skylights. They provide 100 percent diffusion to eliminate hot spots while providing glare-free natural light for more hours per day. The superior frame provides moisture protection redundancy. The fully-insulated thermal break that encapsulates the underside of the frame helps to reduce condensation concerns.