The default is a point light that casts in every direction from the player's hand. He wants a spotlight directed forward. Is it really that difficult to understand?
The default light is not a spotlight, so no, it does not fulfill the requirements of the suggestion and you should stop suggesting it.
Another possible technique for the light would be to mount a series of point lights that had increasingly larger falloff distances along a line to approximate the shape of a cone and then using a raycast to hide/unhide lights positioned on the flash light beam based on the the distance to the wall. That might address the lag issue with moving lights but I don't really know how efficient it would be.
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