Changing Lantern Spotlight color mid game

[Reminiscity]

I can't get it to work

The lantern entity name is "lantern_mandus". I find this method a bit wierd because how would the engine know what is the entity name and what is the spotlight name when its only separated with an underscore? And in this case the entity name has an underscore in it which makes things even wierder.

SetLightVisible("lantern_mandus_SpotLight_2", false);