@rookiedaddy
Thanks for your very accurate tests.
I have two of these CL09 and I'm happy (a third CL09 is coming) but I have to say that my use so far has only been with red flashing and few times at home with levels of 1 or 30 lumens.
I purchased my specimens recently, I will do a test to see if everything is ok on my CL09 I hope to have no surprises.
I consider this light very successful, before it I had two CL05 and although the CL09 is expensive it is worth the additional expense.
@LEDuser5
I have read some reviews on USA_Amazon of users who have lost the CL09 for this "D ring" problem.
I use my CL09 fastened with a carabiner to the backpack but I don't let it dangle or swing, it is stuck in the MOLLE attacks, I hope not to lose it in this way, so far everything is ok.