Really Really Good
Purchased two of these lights for my banners and they are really good in both looks and performance. I don't pay for electricity so I couldn't justify the extra (and significant) expense of the battery, so I'm using just with the AC adapter now. I can see how the battery could be nice for more placement possibilities and not dealing with wires stretching across the room, so I will consider in the future. But for now I'm fine with plugging into the wall.
I purchased the CK2 kit and have used the lights for the first time last week. I cannot believe how much better they are compared to my old 50 watt halogens they replaced. I'm lighting up two 3 foot wide banners and the banner really pop now. Best part is I saved $129 on electric rental fees first show out of the gate! Fit and finish of the lights and battery pack are top notch. Recommending without reservation.
Silicon Lightworks: This review was originally posted for our CK2 Light Kit (Silver), and is included here as well because the purchased light kit included 2 Silver C-700 Banner Lights.