>>1662069i have 3 of these, and 3 cobs i havent tested yet.. havent really used them much yet due to my head getting weird after sitting next to them for a day. they do get quite hot.
there's no solid part of the block to drill that lines up with the cob, the cob/lens holes are up in the fins of the heatsink. one anon suggested making a metal clip from thick metal wire but it would interfere with the fan, and thermal glue to get around that.
