Aputure has recently released a new and larger LED Video panel. The New AL-528W (uses 528 LED bulbs) uses a digital brightness display to show output by percentage. Rotate the brightness wheel to adjust output from 10% to 99%.
Aputure AL-528W LED Video Light Panels
Use the power adapter to power the unit through a wall outlet, or you can use the batteries (Batteries includes Sony F/FM/QM Series) when shooting outside and a Low power warning with red blinking lights when the batteries are low.
Aputure AL-528W LED Video Light Panels
Other features: