From Valve Developer Community
Revision as of 18:26, 9 June 2019 by Deprecated (Changed obsolete template)
This entity is obsolete; its use is discouraged and it may only exist/function in older engine branches.
light_glspotis a point entity available in all Source games.
Leftover from Half-Life 2's early development. Functionally identical to light_spot.
Note:This entity is only supported in the Half-Life 2's beta builds of VRAD.