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I don't want to cook my arms...

Pretty much any LED bulb, even a 100 Watt equivalent, is going to produce negligible heat on objects below. I have a massive high CRI "corn cob" style LED photo bulb for a studio flood lamp (not in the shop, however). Even that thing puts out no noticeable heat working right next to it.
 
I use multiple adjustable light fixtures at the lathe and a couple are bright halogen spots - get hot enough to burn the skin if touched. But a foot or so away, nothing is cooked. The heat produced on the skin is really not different from a powerful LED lamp also at my lathe.
 
I got rid of my halide lights after some shavings got on one and it started smoking. Pretty much all LED lights now, and in natural spectrum/grow lights. I am all Irish, and worked out in the sun for many years, so I need vitamin D supplements because I stay out of the sun most of the time.

robo hippy
 
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