diff --git a/doomsday/apps/client/src/render/lumobj.cpp b/doomsday/apps/client/src/render/lumobj.cpp
index edf090189e..43a2a43f09 100644
--- a/doomsday/apps/client/src/render/lumobj.cpp
+++ b/doomsday/apps/client/src/render/lumobj.cpp
@@ -31,8 +31,8 @@
 
 using namespace de;
 
-static dint radiusMax     = 256;    ///< Absolute maximum lumobj radius (cvar).
-static dfloat radiusScale = 4.24f;  ///< Radius scale factor (cvar).
+static dint radiusMax     = 320;    ///< Absolute maximum lumobj radius (cvar).
+static dfloat radiusScale = 5.2f;  ///< Radius scale factor (cvar).
 
 dfloat Lumobj::Source::occlusion(Vector3d const & /*eye*/) const
 {
diff --git a/doomsday/apps/client/src/render/rend_main.cpp b/doomsday/apps/client/src/render/rend_main.cpp
index 67105723d0..4be7b4f6bf 100644
--- a/doomsday/apps/client/src/render/rend_main.cpp
+++ b/doomsday/apps/client/src/render/rend_main.cpp
@@ -138,7 +138,7 @@ dint torchAdditive = true;
 dint useShinySurfaces = true;
 
 dint useDynLights = true;
-dfloat dynlightFactor = .5f;
+dfloat dynlightFactor = .7f;
 dfloat dynlightFogBright = .15f;
 
 dint useGlowOnWalls = true;
diff --git a/doomsday/apps/client/src/render/rendersystem.cpp b/doomsday/apps/client/src/render/rendersystem.cpp
index c74dbe9c89..527109b1dd 100644
--- a/doomsday/apps/client/src/render/rendersystem.cpp
+++ b/doomsday/apps/client/src/render/rendersystem.cpp
@@ -459,10 +459,10 @@ DENG2_PIMPL(RenderSystem)
                 .define(SReg::IntCVar,   "rend-light-decor", 1)
                 .define(SReg::IntCVar,   "rend-light-blend", 0)
                 .define(SReg::IntCVar,   "rend-light-num", 0)
-                .define(SReg::FloatCVar, "rend-light-bright", .5f)
+                .define(SReg::FloatCVar, "rend-light-bright", .7f)
                 .define(SReg::FloatCVar, "rend-light-fog-bright", .15f)
-                .define(SReg::FloatCVar, "rend-light-radius-scale", 4.24f)
-                .define(SReg::IntCVar,   "rend-light-radius-max", 256)
+                .define(SReg::FloatCVar, "rend-light-radius-scale", 5.2f)
+                .define(SReg::IntCVar,   "rend-light-radius-max", 320)
                 .define(SReg::IntCVar,   "rend-light-ambient", 0)
                 .define(SReg::FloatCVar, "rend-light-compression", 0)
                 .define(SReg::IntCVar,   "rend-light-attenuation", 924)