diff --git a/project/example/ble/ble_peripheral/app/src/bridge_pwm.c b/project/example/ble/ble_peripheral/app/src/bridge_pwm.c
index ab69e25..8476ee3 100644
--- a/project/example/ble/ble_peripheral/app/src/bridge_pwm.c
+++ b/project/example/ble/ble_peripheral/app/src/bridge_pwm.c
@@ -11,21 +11,21 @@
  *   C: GPIO_1 low, GPIO_2 high/PWM
  * OFF: both low
  *
- * Single-color output uses a fixed 1 kHz hardware PWM.
+ * Single-color output uses a fixed 2 kHz hardware PWM.
  *
- * Dual-color output uses one fixed 1 ms frame:
+ * Dual-color output uses one fixed 500 us frame:
  *   OFF -> W pulse -> OFF -> C pulse -> OFF to frame end.
  * The available OFF time is distributed around both direction changes and
  * each W/C transition retains at least 25 us protection.
- * Both non-zero colors therefore produce exactly one pulse per frame (1 kHz).
+ * Both non-zero colors therefore produce exactly one pulse per frame (2 kHz).
  */
 #define BRIDGE_PWM_SCALE          1000U
-#define BRIDGE_PWM_PERIOD         7U
+#define BRIDGE_PWM_PERIOD         6U
 #define BRIDGE_MIX_SCALE          1000U
-#define BRIDGE_FRAME_US           1000U
+#define BRIDGE_FRAME_US           500U
 #define BRIDGE_DEADTIME_US        25U
-#define BRIDGE_DUAL_ACTIVE_US     950U
-#define BRIDGE_MIN_DUAL_PULSE_US  15U
+#define BRIDGE_DUAL_ACTIVE_US     450U
+#define BRIDGE_MIN_DUAL_PULSE_US  50U
 #define BRIDGE_TIMER_TICKS_PER_US 16U
 
 #define BRIDGE_GPIO_PORT          0U
@@ -294,7 +294,7 @@ __RAM_CODE void Bridge_Service_1ms(void)
         total = BRIDGE_MIX_SCALE;
     }
 
-    /* Keep the verified fixed 1 kHz hardware PWM for a single color. */
+    /* Keep the verified fixed 2 kHz hardware PWM for a single color. */
     if (w_mix == 0U || c_mix == 0U) {
         single_state = (w_mix != 0U) ? BRIDGE_W : BRIDGE_C;
         pwm_duty = (uint16_t)((total * BRIDGE_PWM_SCALE +
@@ -323,15 +323,15 @@ __RAM_CODE void Bridge_Service_1ms(void)
         /*
          * Keep 50 us OFF at maximum dual-color brightness. The OFF time is
          * split evenly between W->C and C->W, which both absorbs interrupt
-         * latency and spreads the two optical pulses across the 1 ms frame.
+         * latency and spreads the two optical pulses across the 500 us frame.
          */
         total_on_us = (BRIDGE_DUAL_ACTIVE_US * total +
                        (BRIDGE_MIX_SCALE / 2U)) / BRIDGE_MIX_SCALE;
         /*
          * Timer/driver edge uncertainty becomes visible when a dual-color
          * pulse is only a few microseconds wide. Keep both directions at
-         * least 15 us. This gives dual color a stable floor of about 3%,
-         * while single-color hardware PWM can still reach 1%.
+         * least 50 us. Single-color hardware PWM keeps its independent
+         * high-resolution brightness range.
          */
         if (total_on_us < (2U * BRIDGE_MIN_DUAL_PULSE_US)) {
             total_on_us = 2U * BRIDGE_MIN_DUAL_PULSE_US;
diff --git a/project/example/ble/ble_peripheral/app/src/light_transition.c b/project/example/ble/ble_peripheral/app/src/light_transition.c
index 0296350..e36682a 100644
--- a/project/example/ble/ble_peripheral/app/src/light_transition.c
+++ b/project/example/ble/ble_peripheral/app/src/light_transition.c
@@ -9,7 +9,7 @@ volatile uint8_t Light_Transition_FadeActive;
 #define LIGHT_OUTPUT_SCALE 1000U
 #define BREATH_MIN_OUTPUT (LIGHT_OUTPUT_SCALE / 100U)
 #define DUAL_MIN_COMBINED_OUTPUT ((LIGHT_OUTPUT_SCALE * 15U) / 100U)
-#define DUAL_MIN_STABLE_CHANNEL_OUTPUT 17U
+#define DUAL_MIN_STABLE_CHANNEL_OUTPUT 112U
 #define POWER_FADE_Q12_MAX 4096U
 #define POWER_FADE_ON_TICKS 140U
 #define POWER_FADE_OFF_TICKS 160U
@@ -226,7 +226,7 @@ void Light_Transition_Task(void)
 
     /*
      * Mixed light starts from a 15% combined floor. If the weaker direction
-     * would be below 17/1000 (about 16 us of the 950 us active window), raise
+     * would be below 112/1000 (about 50 us of the 450 us active window), raise
      * the combined floor just enough to preserve the requested W:C ratio.
      * Ratios that cannot satisfy this even at 100% are treated as single
      * color. Single-color output keeps the 1% Gamma minimum.