Inova N-X0MT-WT XO Lithium Powered Flashlight with 4-4/5-Watt LED, Titanium Electronically controlled for uniform light output, the XO projects a light beam up to 150-Feet Precision machined aircraft grade aluminum body, which is crush proof to 2000-Pound Three mode switch cap provides enhanced operability with the choice of push button operation, always on or locked off positions The knurled cap features a lanyard hole and is O ring sealed to enhance water resistance The X0 features a regulated circuit that provides constant energy so the light always shines with the same brightness throughout battery life