400 Lumens of PTec power that's built to go 100 meters below the surface. This means you can have Princeton Tec's most powerful handheld light illuminating any situation work or play throws your way. The Princeton Tec Shockwave LED Flashlight features two modes of illumination, you can choose between full-power and extended-battery mode. Whether you need spotting at a distance or close range lighting, the Princeton Tec Shockwave LED is the biggest, baddest, brightest light you can buy.