One of the challenges with capturing 360° photos or video is lighting, especially given that many of the consumer-grade cameras currently on the market have small sensors and don't work well poorly lit spaces. Early adopters have investigated different ways of adding light without the lights themselves becoming an unwanted feature of the image. One approach is to hide lights in the blind spot of the camera. That means the unit needs to be small and relatively powerful. Mic Ty of 360rumors.com bought a cheap, flexible, clip-on reading light and demonstrated that it is possible to improve the lighting in areas immediately surrounding the camera.
Inspired by his approach, I've purchased one of these lights and I've spent some time testing different configurations. The clip also contains a rechargeable lithium-ion battery, so for most applications it doesn't need external power sources, although you can use the charge cable to add a bigger battery or plug it into an AC outlet with the included adapter for longer duration video, such as live streaming.
I realized I'd have to play around with it some more to get the optimum set up (see photo above). The clip slid down the tripod and I knew I'd have to use something to fix it in place. Then I remembered the flexible ties given to me at Christmas (thanks Shannon!).
While the light helps to fill in the shadows, I'll need something more powerful for bigger spaces. But for the price, it's a valuable addition to my toolkit (An excellent challenge for my industrial design friends at Carleton University!).