diff --git a/infra/config/main.star b/infra/config/main.star
index 1268e6843..b722b114b 100755
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -79,6 +79,10 @@ luci.project(
         acl.entry(acl.BUILDBUCKET_OWNER, groups = ["project-libyuv-admins"]),
     ],
     bindings = [
+        luci.binding(
+            roles = "role/swarming.taskTriggerer", # for LED tasks.
+            groups = "project-libyuv-admins",
+        ),
         luci.binding(
             roles = "role/configs.validator",
             users = "libyuv-try-builder@chops-service-accounts.iam.gserviceaccount.com",
diff --git a/infra/config/realms.cfg b/infra/config/realms.cfg
index ae04529ef..16ffaac90 100644
--- a/infra/config/realms.cfg
+++ b/infra/config/realms.cfg
@@ -38,6 +38,10 @@ realms {
     role: "role/scheduler.reader"
     principals: "group:all"
   }
+  bindings {
+    role: "role/swarming.taskTriggerer"
+    principals: "group:project-libyuv-admins"
+  }
 }
 realms {
   name: "ci"