Finally a macro LED ring light that does it right. Can be configured to trigger a hot shoe. The powerband is enough to run at reasonable ISO settings. I've had a Canon RingFlash for a few years. I missed this when I switched to Micro 4/3 cameras but wasn't ready to buy another ring flash. My previous experience with LED ring lights was that they were low wattage and not bright enough to be used for some of the things I was shooting with them. This emits enough lumens to be carried in a pocket. Will travel with me to Peru to photograph little frogs.