If you need a bright, portable on-camera light for various production situations, the LED-70 On-Camera Video Light with Swivel Ball Head Mounting Clamp from Bescor covers a 30-foot area with its 96 bulbs and 70W power.
The light's 6500K daylight color temperature can be warmed to 4300K with the included amber correction filter, or it can be softened with the included frosted filter. The light runs on four separately available AA batteries and can run on AC power with a separately available adapter. Also included with the LED-70 is a clip clamp with an attached swivel ball mount so you can mount the light in an alternate location such as on a stand or table.