thats the Eaglesoft Piper Comanche Twin and those fellows did a great job in their lighting dept.
for the default planes - you can go into your effects folder...scroll down to fx_vclight_caravan for example - make a copy of it and rename to
fx_vclight_caravan01 or something similar...
here is mine - opened with notepad :
[Library Effect]
Lifetime=5
Version=2.00
Radius=-1
Priority=0
[Properties]
[Emitter.0]
Lifetime=0.50, 0.50
Delay=0.00, 0.00
Bounce=0.00
Light=1
No Interpolate=1
Rate=1.00, 1.00
X Emitter Velocity=0.00, 0.00
Y Emitter Velocity=0.00, 0.00
Z Emitter Velocity=0.00, 0.00
Drag=0.00, 0.00
X Particle Velocity=0.00, 0.00
Y Particle Velocity=0.00, 0.00
Z Particle Velocity=0.00, 0.00
X Rotation=0.00, 0.00
Y Rotation=0.00, 0.00
Z Rotation=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Pitch=0.00, 0.00
Bank=0.00, 0.00
Heading=0.00, 0.00
[Particle.0]
Lifetime=0.00, 0.00
Type=19
X Scale=1.00, 1.00
Y Scale=1.00, 1.00
Z Scale=0.00, 0.00
X Scale Rate=0.00, 0.00
Y Scale Rate=0.00, 0.00
Z Scale Rate=0.00, 0.00
Drag=0.00, 0.00
Color Rate=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Fade In=0.00, 0.00
Fade Out=0.00, 0.00
Rotation=0.00, 0.00
Static=1
Face=1, 1, 1
[ParticleAttributes.0]
Blend Mode=2
Texture=fx_2.bmp
Bounce=0.00
Color Start=32, 32, 12, 1 <--------these are the entries to adjust*
Color End=25, 25, 22, 0 <--------and these*
Jitter Distance=0.00
Jitter Time=0.00
uv1=0.00, 0.00
uv2=0.01, 0.01
X Scale Goal=0.00
Y Scale Goal=0.00
Z Scale Goal=0.00
Extrude Length=0.00
Extrude Pitch Max=0.00
Extrude Heading Max=0.00
* if you look at your default setings and compare to this adjusted one , you'll see the difference is not slight.
now - during dusk FSX lighting - the VC light is very dim - but when the floods kick on in FSX night conditions - these settings will give you a much more accurate light in the cockpit for night flying...
** important - to see these settings in the 737 or other - YOU MUST also go to that particular planes' .cfg folder and change the vc_lighting to
use fx_vclight_caravan01 instead of its default