In a reasonably warm environment, on a headstrap, with a fresh battery, on full high with the SC62d, it can get hot but I do not know how hot because I have not let it do that for long. I am guessing it will taper off before significant damage is done and of course not be as hot as the XML2 versions. The second highest high will suffice for most needs and seems to be able to be used for extended time periods.
Edit: I remember now that I did run full-on for sustained periods indoors. The light got hot but not too hot to hold onto. (I was hoping to eliminate low level flickering when left on in highest high)
Edit: I remember now that I did run full-on for sustained periods indoors. The light got hot but not too hot to hold onto. (I was hoping to eliminate low level flickering when left on in highest high)
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