Haven't seen it, but I think it's pretty hard to beat their 1W 1xCR123 Luxeon light. It's the same that
Amondo sells for $21.50. According to Quickbeam's
review, it has 87% of the output of the Nuwai
QIII but gets 3 TIMES the run time, meaning it is a very efficient light and an excellent buy. It is brighter than my early Arc LS - more than enough for most uses - and has a tactical clicky.
Unless the new SI light can at least match the output of the
Amilight (2X the output of the 1 watter for 1/3 the run time), I wouldn't be interested at 2.4 times the 1 watter's price.