diff --git a/app/include/zmk/rgb_underglow.h b/app/include/zmk/rgb_underglow.h
index 8bbe11cbe36..f692436293a 100644
--- a/app/include/zmk/rgb_underglow.h
+++ b/app/include/zmk/rgb_underglow.h
@@ -21,6 +21,7 @@ struct zmk_led_hsb {
 struct zmk_periph_led {
     uint8_t layer;
     zmk_hid_indicators_t indicators;
+    bool on;
 };
 
 int zmk_rgb_underglow_toggle(void);
diff --git a/app/include/zmk/split/bluetooth/service.h b/app/include/zmk/split/bluetooth/service.h
index 588cbfa5ace..96176754e5e 100644
--- a/app/include/zmk/split/bluetooth/service.h
+++ b/app/include/zmk/split/bluetooth/service.h
@@ -42,6 +42,7 @@ struct zmk_split_input_event_payload {
 struct zmk_split_update_led_data {
     uint8_t layer;
     uint8_t indicators;
+    bool on;
 } __packed;
 #endif
 
diff --git a/app/src/behaviors/behavior_rgb_underglow.c b/app/src/behaviors/behavior_rgb_underglow.c
index 1f8dca8ffdb..bb07d1ffb36 100644
--- a/app/src/behaviors/behavior_rgb_underglow.c
+++ b/app/src/behaviors/behavior_rgb_underglow.c
@@ -266,7 +266,7 @@ static const struct behavior_driver_api behavior_rgb_underglow_driver_api = {
         on_keymap_binding_convert_central_state_dependent_params,
     .binding_pressed = on_keymap_binding_pressed,
     .binding_released = on_keymap_binding_released,
-    .locality = BEHAVIOR_LOCALITY_GLOBAL,
+    .locality = BEHAVIOR_LOCALITY_CENTRAL,
 #if IS_ENABLED(CONFIG_ZMK_BEHAVIOR_METADATA)
     .parameter_metadata = &metadata,
 #endif
diff --git a/app/src/rgb_underglow.c b/app/src/rgb_underglow.c
index d5c31013f50..3e65fd30e2c 100644
--- a/app/src/rgb_underglow.c
+++ b/app/src/rgb_underglow.c
@@ -167,7 +167,12 @@ static struct led_rgb hsb_to_rgb(struct zmk_led_hsb hsb) {
 
 int zmk_rgb_underglow_set_periph(struct zmk_periph_led periph) {
     led_data = periph;
-    LOG_DBG("Update led_data %d %d", led_data.layer, led_data.indicators);
+    if (!state.on && led_data.on)
+        zmk_rgb_underglow_on();
+    else if (state.on && !led_data.on)
+        zmk_rgb_underglow_off();
+
+    LOG_DBG("Update led_data %d %d %d", led_data.layer, led_data.indicators, led_data.on);
     return 0;
 }
 
@@ -476,6 +481,7 @@ static int zmk_rgb_underglow_init(void) {
         on : IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW_ON_START)
     };
     led_data.indicators = 0;
+    led_data.on = IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW_ON_START);
 
 #if ZMK_BLE_IS_CENTRAL
     k_work_init_delayable(&led_update_work, zmk_rgb_underglow_central_send);
@@ -483,8 +489,10 @@ static int zmk_rgb_underglow_init(void) {
 
     k_work_submit_to_queue(zmk_workqueue_lowprio_work_q(), &underglow_tick_work);
     zmk_rgb_underglow_off();
-    if (IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW_ON_START))
+    if (IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW_ON_START)) {
+        ext_power_enable(ext_power);
         zmk_rgb_underglow_on();
+    }
     triggered = false;
     return 0;
 }
@@ -514,6 +522,11 @@ int zmk_rgb_underglow_on(void) {
     state.animation_step = 0;
     k_timer_start(&underglow_tick, K_NO_WAIT, K_MSEC(50));
 
+#if ZMK_BLE_IS_CENTRAL
+    led_data.on = true;
+    zmk_rgb_underglow_central_send();
+#endif
+
     return 0;
 }
 
@@ -544,7 +557,10 @@ int zmk_rgb_underglow_off(void) {
 
     k_timer_stop(&underglow_tick);
     state.on = false;
-
+#if ZMK_BLE_IS_CENTRAL
+    led_data.on = false;
+    zmk_rgb_underglow_central_send();
+#endif
     return 0;
 }
 
@@ -703,6 +719,7 @@ static int rgb_underglow_event_listener(const zmk_event_t *eh) {
     if (as_zmk_usb_conn_state_changed(eh)) {
         led_data.indicators = zmk_hid_indicators_get_current_profile();
         led_data.layer = zmk_keymap_highest_layer_active();
+        led_data.on = state.on;
         int err = zmk_split_bt_update_led(&led_data);
         if (err) {
             LOG_ERR("send failed (err %d)", err);
diff --git a/app/src/split/bluetooth/central.c b/app/src/split/bluetooth/central.c
index af4ad73fdaf..6c27dd9c9a3 100644
--- a/app/src/split/bluetooth/central.c
+++ b/app/src/split/bluetooth/central.c
@@ -1242,8 +1242,8 @@ static int split_bt_update_led_payload(struct zmk_split_update_led_data payload)
 };
 
 int zmk_split_bt_update_led(struct zmk_periph_led *periph) {
-    struct zmk_split_update_led_data payload = {.layer = periph->layer,
-                                                .indicators = periph->indicators};
+    struct zmk_split_update_led_data payload = {
+        .layer = periph->layer, .indicators = periph->indicators, .on = periph->on};
 
     return split_bt_update_led_payload(payload);
 }
diff --git a/app/src/split/bluetooth/service.c b/app/src/split/bluetooth/service.c
index 9d91db884fc..94dd522d20c 100644
--- a/app/src/split/bluetooth/service.c
+++ b/app/src/split/bluetooth/service.c
@@ -127,7 +127,8 @@ static ssize_t split_svc_update_led(struct bt_conn *conn, const struct bt_gatt_a
     // 1: We've gotten all the position/state/param data.
     // 2: We have a null terminated string for the behavior device label.
     if ((end_addr == sizeof(struct zmk_split_update_led_data))) {
-        struct zmk_periph_led periph = {.layer = payload->layer, .indicators = payload->indicators};
+        struct zmk_periph_led periph = {
+            .layer = payload->layer, .indicators = payload->indicators, .on = payload->on};
         zmk_rgb_underglow_set_periph(periph);
         LOG_DBG("Update leds with params %d and %d", periph.layer, periph.indicators);
     }