Nope, it's not the biggest, brightest, most tacti-cool type of light out there. But these little squeeze-button keychain lights are easy to find, cheap to buy (even free as promotional items sometimes), and utterly portable. Weighing just a fraction of an ounce, they can latch onto any key chain making them a light source you can always have with you. Models that feature a constant-on switch as well as a squeeze button activator are the best option. These are ideal as back-up lights or as primary lights when nothing else can be carried. If you are following the advice to have your keys in hand when walking out into a dark parking area, or into a building at night, this handy little flash allows you to hold your keys and light the path or key holes at the same time. MSRP: $8