Photon Microlight 2 is an incredibly bright & ruggedly tough keychain LED EDC light, featuring a dual function on/off switch plus momentary squeeze button. Truly micro, the patented Photon Micro-Light II LED flashlight nearly hides under a US quarter and weighs about the same (a mere 6.2 grams). It's solid construction is designed for a lifetime of trouble-free use. The versatility, superior engineering, and durability have made the brightest-for-its-size Photon Micro-Light a highly demanded accessory for police forces, NASA shuttle crews, and Secret Service personnel. Instant brilliant light anywhere and anytime you need it. The Photon II features a sliding on/off switch for extended use, as well as a momentary squeeze-button similar to the one found on the squeeze-only Photon Micro-Light I. The long-lasting, replaceable lithium battery is always ready even at subzero temperatures. The Photon Micro-Light II's super-bright LED generates a powerful beam, visible over a mile away, and able to illuminate any path. Dual function on/off switch, plus momentary squeeze button. Quick release keyring - Reliably attaches to gear or keychain for quick release. Micro size - goes anywhere you go Unbreakable LED light Glass filled polyurethane case - Virtually indestructible. 12+ hour battery life Replaceable battery - Energizer lithium batteries provide long lasting service even in sub-zero temperatures. Incredibly bright! - Visible over one mile!