how best results from a (fixing)trower ?(2014+)

we know we have good results with eg the jacobA60 dedomed, TF 20 (zoom) dedomed and many other …. but these flashlights we have not the result of a DEFT-X

how can we achieve the best results for a nice comp deed bright beam for a limited volume of flashlight?
wave collar? and atmosferish?
like experience.