I'm already aware of the Rex, but do any other lights use multi Nichia DS or GS as the primary light source? Just thinking about the great floodiness of the p.o.s. 3AAA 9 LED, but in a reliable platform and brighter sounds like something I "need" to have in my collection. Could you imagine those 100+ LED showerhead lights with the GS? 500 floody lumens by UNDERDRIVING them at 5 lumens each to maintain reliability and have great runtime to boot? Am I alone in wishing for more in the multi 5mm market?