I have made an extension to add new light types. In my example I have created a light source called "Sunrod"
<preset key="sunrod" nameres="lighting_sunrod" color="FFF9FEFF" bright="6" dim="8" />

This Preset works correctly when applied to a token using the image sidebar but not when applying as an effect. When applying as an effect I have to use LIGHT: 4 sunrod to get the same dim distance as using the sidebar but the Bright distance is not correct. It looks like it is always dimming half the distance when applied as Effect?