Okay, I normally poke fun at the miniature video camera scene - the action-cam that is attached to skiers, motor cars, and mountain bikes. The little invitation to the emergency department at RPH...
Other people love 'em - they seem to be the necessary accessory for the adventurous life. They have sold steadily since their introduction a few years back. And lots of manufacturers make add-on bits that mont them or retrieve them from ever more hazardous positions. Now we have a REALLY good action cam light made by Qudos that may well have other photographic applications.
The light runs from an internal 3.7 v 1000mAh battery - it has a waterproof cover at the back where the adjustments and the charging socket are - you refuel it from a USB port.
In the packet are an action -cam mount that lets you attach it to your GoPro. And thence to any of the other GoPro mounts. There is one sealed metal on/off button on top.There is a hot-shoe adapter.
Three LED lights in the working face and there is provision for adjustable output - low and high. You can narrow or spread the way the beam comes out. The blessed thing will pump out from 70 to 400 lumens and apparently you can run from 35 min to 4 hours.
Okay, I take it all back. This really works. It is bright enough to act as a fill for the Fujifilm X-10 and it seems to pump out an additional stop of light. WooHoo. it is small, light, rugged, and effective.
A serious contender in what might be a strobists lighting pack.