Remote pressure switches are designed to replace the tail cap of a tactical flashlight while mounted on a gun, so the output and off/off can be controlled without moving hands out of position. These can also be used when mounting a flashlight to a bike. Another use is if a flashlight will be mounted in a hard to reach location, the remote pressure switch can be stretched to a more reachable location.
With LED flashlights, the button is the most likely piece to give out first. If the manufacturer has denied warranty for the button and it isn't listed here, then contact us and we will see if we can get the button in.