Here is a new light for DSLR users. The Stellar Lighting Systems Rig Light - LED Ring-Light for DSLRs mounts to the front of your lens and allows you to add additional devices to the light itself, such as a microphone and a monitor. This is by far our most flexible and adaptable lamp, perfect for today's film and video shooters. It can even hold another light to create special effects or get the light right where you want it it be.
The STL232 Rig Light produces about 1700 Lumen; plenty to give you a good exposure. And it comes with everything you need: 52, 55, 62, 67, 72, and 77mm adapter rings and a battery and charger.
Just put it on and shoot. This is by far the most powerful and most versatile LED light in the market. Use It on top of the camera or as a ring light A whopping 1700 lumen 5880K daylight color temperature. Fully Dimmible with a One year warranty.