Previous thread here. I do like the design and would consider it if I knew I would be able to swap with neutral or warm XMLs. The >6000K tints don't do it for me.
Also available from qualitychinagoods with some additional photos. Claimed output measurements from IS are a little more believable (High mode:1790lumens/ Middle mode:1350Lumens/ Low mode:700Lumens).
I agree the lack of a side switch makes this somewhat undesirable.
I'm curious, where is mentioned these are U2's?