Tektite Waterproof IR/White Light Strobe 200. NATO Stock Number (NSN): 6230-01-524-9267. Supplied with both IR and clear lenses for covert and overt use respectively. Available in either Xenon lamp or high intensity LED versions (Xenon type pictured). Waterproof depth rating: LED version 500 feet, Xenon version 1,000 feet. Uses 2 x standard C-cell batteries. Run time approximately 24 hours. Securing loops for use with the supplied Velcro strap and lanyard hole that will accept 550 paracord. Shock resistant construction. Internal platinum catalyst pellet for absorbing hydrogen emissions to prevent explosion risk during underwater operations. Compatible with dual FLIR systems. Dimensions: 7.25" (18 cm) L x 1.9" (5 cm) Dia. Made in the USA. Uses: all weather and underwater overt and covert marker. Batteries not included. Supplied with detailed instructions for use. New Old Stock.