The Nanguang RGB66 LED On-Camera Light features 324 LED lighting elements with white and RGB elements for conventional and creative lighting effects. The rear brightness control can dim the light output fully from 0-100%. A second control knob adjusts the color output. In white light mode, the color temperature can be adjusted from 3200 to 5600K, enabling you to match ambient light from tungsten or daylight-balanced sources. Switch over to RGB mode and you can use that same knob to choose from colors in the RGB color wheel, from 0-360°. The built-in LCD display shows mode options and parameter adjustments. Additionally, you can access creative lighting effects that switch colors or flashing patterns. For power, mount a Sony L-Series battery to the built-in plate, or connect a separately available AC adapter via the barrel jack.