Rayovac Industrial 6V Krypton Floating Lantern is the perfect tool for the job. This lantern has a powerful output of 75 Lumens, with an estimated run time of 7 hours. The body of the lantern is sturdy and reliable and can float in water so you don't need to worry about losing it in a marine environment. A stable swivel head allows the light to be pointed in any direction desired, so no matter what angle your work requires this lantern is up to the task.