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On land or under water, if you're looking for something in the dark Pelican's Nemo 2000 will light the way.The Pelican(TM) Nemo(TM) 2000 is o-ring sealed with a twist-on shroud and comes with a polarity battery guard tray that safeguards against dangerous "outgassing" of hydrogen from an accidentally reversed cell.It is powered by 3 C alkaline cells for 33 Lumens and longevity. Batteries not included.In the water? No problem, the Nemo is submersible to 500 feet which also makes a great dive light.An ABS resin body is resistant to chemicals, corrosion, and extreme temperatures. This flashlight will stand up to anything.Unlike ordinary flashlights that produce a yellow beam, the Nemo(TM) 2000's incredibly bright Xenon beam produces an extra powerful collimated white beam.Pelican's Nemo 2000 is the leader in quality and performance.