I'm working on doing comparisons of different light settings. Here's a test with just a color and no texture at varying opacities. Having no texture doesn't look very good at least with simple shapes.

These are 70%, 80% and 90% opacity from left to right.

name#1=Globe bl 70opa
category#1=Lights
icon#1=/Globe bl 70opa.png
model#1=/Globe bl 70opa/globe-bl-70opa.obj
multiPartModel#1=true
width#1=61
depth#1=61
height#1=62
movable#1=true
doorOrWindow#1=false
lightSourceX#1=30.5
lightSourceY#1=30.5
lightSourceZ#1=31.5
lightSourceColor#1=#333333
lightSourceDiameter#1=40
elevation#1=0
modelSize#1=8727823
creator#1=Silvercat

Next I'll compare light sizes with one of these lamps.