This flash stood out from the crowd. It uses the latest LED technology and works well. The flash can be used as a flash up to 1/100. This can be a controller to turn on the right side, left side, or all LEDs. With a 50mm f2 lens at 3ft, I can shoot handheld pretty well. I like the ability to have the LEDs on all the time. It's especially helpful when my DSLR's autofocus works in dark environments.