I have been using a Frezzi Sun Gun 24 watt HMI in some Interior Design shots. I like using this light for it's 5600k output. All the interior shots have a high level of bluish outside light coming in and the HMI blends nicely with the warmer incandescent coming from the interior lamps. I also like the battery operation no extension cords and the HMIs put out no heat. But they just don't put out much light. I was wondering - What battery operated light puts out the most light? The sun Gun is 70 foot candels at 5 feet. Surely there are some portable lights that can produce more light without too much heat emitted? What about a frezzi mini fill 100watter ? Thanks if anyone can help.