This week in Berlin we’ve had the opportunity to have a peek at the Knog Quodos, a set of lights for mobile photography. This light pack is being promoted as a GoPro companion, but is able to attach to a variety of mobile camera units. It’s USB rechargeable, waterproof up to 40M, and shines brightly with a whopping 400 lumens of light.

The USB-rechargeable battery inside this unit is replaceable, as well. You’ve got a battery level indicator on the outside, and three high-powered CREE-brand LEDs blasting rays out the front. Color temperature on this unit is 5000k, keeping your photos and videos color-correct.
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https://www.slashgear.com/knog-quodos-hands-on-lights-for-gopro-at-night-05402168/