Hi - anyone bought a LED light panel from eBay like this one?

Pro 70-LED Video Light for DV Camcorder Lighting E6D - eBay, Other Digital Video Cameras, Digital Video Cameras, Cameras. (end time 24-May-10 16:01:28 AEST) (http://tinyurl.com/2cudhxu)

Just for illuminating faces in nighttime party situations really.
Would like to know if they're any good - any gotcha's etc.
Do they hold their charge well, battery life etc.

Thanks!