Handheld spotlights with a maximum lumen output of 6000 lumens are the brightest. This is a good example of how bright a handheld spotlight can be. A light output of 6000 lumens covers approximately 40 football fields. There are brighter lights, but 6000 lumens is the best handheld spotlight light. You can see far from a dark body of water with a brightness of 6000 lumens.