The 2340 Mitylite TM 2AA is 61/4" in length and is equipped with a handy tail button switch (on/off and intermittent). The Mitylite 2AA is made of an unbreakable chemical resistant resin with a polycarbonate lens and thermoplastic rubber shroud. Catalog #2340C includes a pre-focused Xenon lamp module, shirt clip, and 2 AA-cell Energizer alkaline batteries. The Mitylite 2AA is water-resistant (but not for scuba applications) and is safety approved for FM, CSA, MSHA, and UL. Like all Pelican products, the Mitylite 2AA is made in the USA and backed by Pelican's Unconditional Lifetime Guarantee. Water resistant, NON-SUBMERSIBLE.