There are certain tools that adventurous boaters must have aboard at all times. That includes a powerful flashlight like the Infinity X1 5,000-lumen model. This big torch reminds me of the ol’ Maglites, but it’s even better thanks to LED technology with three levels of brightness, extreme optical clarity, and a beam that adjusts infinitely from spotlight to floodlight with a turn of the lens housing. The spotlight carries for more than 200 yards. Hybrid power technology enables using a nine AA-battery cartridge or a rechargeable cell with a built-in USB cord so you can charge it on the boat. Both provide five hours of use. Four blue LED indicator lights keep you posted on remaining battery capacity. An aircraft-grade, waterproof aluminum housing features a nonslip knurled grip. I use this flashlight all the time when boating at night or to peek into the bilge to make sure all is shipshape. I would never leave the dock without it. $89; infinityx1.com