I've made the point before that not every LEO is doing the 'Cops' bad-boyz, bad-boyz thing. Different assignments, locations, situations, circumstances, etc.
What works for an Air Marshal may not be so great for SWAT. An airborne observer and a dog handler may not need the same light. A boat crewman and an undercover narcotics officer might have very different needs. The mounted officer and the crime scene investigator have very different jobs. Some work in the deserts, some the mountains, some mostly indoors, others mostly outdoors. Agency policies can be restrictive as to what is carried.
Throw out the information on what is available and let the professionals make up their minds. I don't even make recommendations to my coworkers, because what they want is usually different from what I want, even though we work side-by-side.