I remember someone (mrradlos?) using a Ledil Tina aspheric optic (tada! Led lighting - Products | Ledil), but I can't find the thread to check out the beam shots. Thinking about one for a new helmet light along with an LED-DNA 10deg optic, but Digikey don't sell them in quantities of less than 500 (bit more than I need) and I don't want to pay crazy postage at Mouser just to find out that it's not for me.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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