Five Oceans multi-function blue marine LED underwater light can be used either on water or land. Does not require to be underwater to operate as other underwater lights do. The light comes with a strong polished AISI316 stainless steel trim ring and housing to battle the tough marine environment and ensure reliable waterproof performance. Simple installation, includes mounting hardware, and a rubber gasket. This transom light is an essential part of your boat to make it more visible and increases safety for outdoor night activities. Great for pontoon boats, day and sport cruisers, centre console boats, fishing, etc.