Bescor MPL-645 Kit, with 50 watt 12v DC On Camera Video Light, NMH54XLR Battery & Atm-Prb Automatic Charger.

A variable rheostat lets you tune the light from 50 watts down to 20.
Helps you conserve battery power by lowering your light's wattage requirement.
A high pulse circuit helps maintain the bulbs color temperature.
The dichroic filter turns the 3300K standard yellowish output to 5600K daylight output.
Adjustable barn doors are available separately.
Other features include a universal shoe mount and a 6 foot coiled cord with 4 pin XLR connector.