The Promaster 57B LED Panel Light is a thin, battery-powered light panel for stills or video. It's dimmable from 10%-100%, and the color balance can be adjusted from 3200-5600K. It runs on NP-F type batteries (one is included, with a charger) and it can be plugged into AC or DC power with the included adapters. Pretty soft light for an LED, too. That's the good part. The bad part is that the rear panel controls are just atrocious. You'll be able to figure them out, but if you're the kind of person who believes that a button label should be placed anywhere near its corresponding button, you're gonna yell. Anyway, it's a Promaster, what are you gonna do.