Amazon Customer
It works and has plenty of power, so much so that I dial it down to the lowest output for shooting interior rooms. I only gave it 4 stars because the on off switch is not very prominent and it is hard to turn the unit off without moving the camera. I shoot brackets and only want the flash to fire on the first or second exposure. The recharable battery is great and lasts a long time, but there isn’t any indicator of how much power is left, so I’m probably recharging the battery pack more than I need to. The only solution that I can see is to buy another battery pack as a backup.