JI... one further comment... the Surefire 6P is a forward push on button...you have to hold the button forward... for continuous light you twist the end cap... very fool proof, no switch to malfunction...a lot of lights are "reverse click", that is you push the button, and the light comes on when the button is released...if your Mom wants a light with multiple light settings (most of the LED drop in modules have this option) this is typically the way the light modes are selected, though, some employ a rotating bezel or additional switch