Retiring from law enforcement after 38 years on the job (majority on nights) I've had my experiences with all brands of flashlights. My favorite (and still constant companion) is the Surefire Executive Elite (E2E). Small, tail cap switch, and pocket clip. Uses 2 CR123 batteries and the Xenon (I think) type bulb . Maybe just me, but I like the softer light and seems to be more penetrating and not as glaring as the LED. Don't know if E2E is still available, but I believe it is in the LED model. Batteries aren't that high if you buy several at a time from Surefire or on eBay.