No idea - saw Sys Light Duo in the flesh last Monday and I was quite impressed by it after playing around with it.
The stand/tripod is huge though - unecessarily so! If I ever were to get one I would get one without the stand.
It is a bit too expensive for meand my limited need for it. I got me a SYS KAL II for my bonus in February and I am really happy with it. It does really well and is compact enough so it is always with me. If I was a painter or did more on site work I might look into the Sys Light Duo, but I am not sure I'd want to pay that much for a work light.
I did say the same about the SYS KAL II but now that I have it I am happy with it - it has replaced two corded LED work lights and gives an output equal to the pair of them. [eek] (Which only goes to show I bought two cheap ones I guess)
