Here are some comments from camera and lighting professionals:
"LibertyPak is the only way to go as far as I'm concerned. I only need one a day - and I've never run out of power, no matter how much I've shot that day." Eric Zimmerman, AC
"We put the battery on at 10:30 (am) and wrapped at 10. Never had to change it. It was the only battery we used all day. We were shooting high speeds with a 435. " -AC on Euricka music video using one LP24
"These Belts are incredible..we are chasing tanks thru the desert, got oil and dust, smoke, and there is no time to change batteries - and with these we never have to worry.." -Michael Endler, AC on Jarhead
"With four of these (LB 33/24 light belts) I can run all day - one belt can burn the Arri 400 for 1 hour 35 minutes, or we can run 2 of the 200's at the same time off the same belt which is great for car stuff. This really has my attention!" Dwight Campbell, Gaffer, Boom Town for CBS.
"I know we ran the 21/50 ballast for four hours and the 200 for almost 2 hours. It has more power than we expected. There's no comparison to what's out there. That's like 3 or 4 battery belts in there. We really like them. They perform very well for all the cameras especially hi-speed. " -Electronic tech for a camera and lighting rental house, NYC
"The Kamio held its color temperature for almost nine hours straight. That was enough for us. There were a few hours left in it, but it proved itself to be more than capable. We would recommend it to anyone using this light." - Kino Flo about the LP 12/40
"In order to run a 400 watt HMI light we usually need two battery belts and then they only last about 15 minutes. The LP 24 lasted an hour and thirty minutes. We are very pleased with your packs." - Electronics technician at CSC, NYC
"Lots of hand-held work on location using the 125 Pocket Pars meant we would normally rent 16 belts for the two days - and since we knew the LP 24 could give us 3 and 1/2 hours each, we rented four. .the shoulder strap worked really well, made it really easy to use.... definitely going to use them every chance I can." - Gaffer on Coppos Films shoot .
"We are running the camera non stop for 5.7 hours - we're shooting with Sony HD 24's, fully loaded. The normal clamshells were only lasting 85 minutes." AC on popular TV series, Touched by an Angel, using the 16.8V, 24 amp pack.