@CptLucky8 is right. Same lamp texture since release.
Oversized at release, still oversized.
Here’s the release build early september, compared to Update 5 & Update 7. The biggest difference is the brightness falloff, “old” lamps also fading into invisibility with unchanged size after a very short distance.
Before update 5, lamps disappeared after just a fraction of what the distance in real life. But they where still the same size bulbs.