We often spend much of our time obsessing over the light’s brightness, without considering other important features, like the pistol light’s interface with the shooter.  Activating the light in an emergency needs to be intuitive. Toggles, paddles, and switches vary among manufacturers, and individual user preference plays a role. Switches like the one on the Streamlight TLR-7 Sub and Surefire X300 Turbo provide the ability to drive your thumb into the switch for momentary-on but can also be toggled up or down for constant-on. These models are my preferred style of switches. The ability to run momentary-on so that the light deactivates during reloads, malfunction clearances, or movement is a must, since you don’t want to illuminate yourself during these tasks. Constant-on while shooting one handed is also valuable and applies to the law enforcement officer and everyday carry citizen alike.