Clip on your light.

You’ll have light whenever you need it with this handy device. No need for cords or racing around trying to find batteries here. With a Streamlight ClipMate USB you simply use the built-in USB charge tab, clip it on and you’re done. This little light is very durable and lightweight, water-resistant and 1 meter impact resistant making it ideal for travel or sport. It only takes 4 hours to fully recharge so you’ll be ready to go in no time.

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Buy on www.amazon.com
$25 - $75