Title: Poor switch design, burns itself out in your pocket.
Review: As others have noted, this product has an extremely loose side swtich for constant on functionality. This will cause the light to inadvertantly power on and drain itself in your pocket. I would opt for either the momentary on ONLY version of this light made by Princeton Tec, or one with a microcontroller operated constant on/momentary on. After discovering that this light had finally drained itself entirely (after 4 or so incidents of it being on when it shouldnt have been) I purchaced this product -LRI FMW Photon Freedom LED Keychain Micro-Light, White Beamand found it to be superior in EVERY way.
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