Like the title suggests this video light wieghs next to nothing, even with a big sony camcorder battery installed, it sits on top of my dslr and is not too intrusive. The light output is really good with a good spread, it`s never going to fill a large hall with light but it`s still quite impressive though. I got about 45 mins out of rechargable AA batteries (6) at full power, the sony NP-f930 battery gives hours of use.The build quality is good enough bearing in mind it`s lightwieght construction, the filters are a nice tight fit and don`t slip out, even when turned upside down, and really defuse the light well. There are a few really cool features on this light, like it`s ability to use various types of batteries, and the dimmer control and the battery charge check.The only downside is the mounting bracket looks a bit flimsy, but it works well and holds the lamp in position ok, it is screwed to the light so might be replaceable.At this price it really is a prety good piece of kit to have in your bag......recommended
EDIT- I've had this light for over 6 months now and it has been bounced around in my bag in various locations whilst on shoots and it has proved to be much tougher than first impressions would suggest, my initial fears about the mount were unfounded as the light has taken a few hard knocks which have tilted the lamp backwards on it's bracket,but no damage was done. I'm well happy with the light and would buy another.