A light and method are described herein that use correlated magnets to enable at least one end to be secured and removed from the body of the light. Some examples of such a light include a scuba light, an underwater light, a flashlight, a submersible pool light, an emergency light, a floating light, an aquarium light or a vehicle light. Furthermore the force created by the correlated magnets mounted on the at least one end and the body creates a seal there between to substantially isolate the interior portion of the light from materials and/or matter in its external environment. Additional correlated magnets mounted in the body of the light enable the light to be secured to numerous second objects such as but not limited to scuba harnesses, belts, gloves or storage racks.