diff --git a/pkg/tsdb/grafana-testdata-datasource/sims/grot3d.go b/pkg/tsdb/grafana-testdata-datasource/sims/grot3d.go
index aed7bdd2602..6865a9970c7 100644
--- a/pkg/tsdb/grafana-testdata-datasource/sims/grot3d.go
+++ b/pkg/tsdb/grafana-testdata-datasource/sims/grot3d.go
@@ -533,7 +533,7 @@ func newGrot3dSimInfo() simulationInfo {
 					LightX:         -1,
 					LightY:         -1,
 					LightZ:         -1,
-					AmbientLight:   0.3,
+					AmbientLight:   0.5,
 					ViewWidth:      800,
 					ViewHeight:     800,
 					Perspective:    1000,