A 30 volt battery pack or belt will run an HMI light up to 200 watts, or a tungsten light up to 250 watts. A 12 or 13.2 volt battery will run a tungsten light up to 100 watts. Run time will depend on the capacity of the battery, ranging between 30 minutes and an hour and a half. The Lowel id light has a built-in dimmer, which, if used, will enable it to run for longer. PAG's 6 volt 20 watt C6 light will run for 2 hours.