diff --git a/keyboards/system76/launch_beta_1/config.h b/keyboards/system76/launch_beta_1/config.h
index feb6dce7d47..a7dc902bb76 100644
--- a/keyboards/system76/launch_beta_1/config.h
+++ b/keyboards/system76/launch_beta_1/config.h
@@ -27,8 +27,11 @@
 #define DEBOUNCE 5
 
 #define RGB_DI_PIN E2
-#define RGBLED_NUM 84 
+#define RGBLED_NUM 84
 #define RGBLIGHT_ANIMATIONS
+// Limit brightness to support USB-A at 0.5A
+//TODO: do this dynamically based on power source
+#define RGBLIGHT_LIMIT_VAL 176
 
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE