diff --git a/src/switch_control.rs b/src/switch_control.rs
index 286f8f2..140246b 100644
--- a/src/switch_control.rs
+++ b/src/switch_control.rs
@@ -279,7 +279,7 @@ pub struct SwitchControl<const T0: i32>
     mode_switch_delay_counter: u32,
     cv_pid: PID<10000, T0>,
     mppt: MPPT<200, 0 /* percent loss of peak power */>,
-    imp_ctrl: ImpedanceControl<T0, 11000, 15000>,
+    imp_ctrl: ImpedanceControl<T0, 5400, 1000>,
     pwm_max: i32,
     pwm_cur: i32,
     cv_target: i32,
@@ -295,7 +295,7 @@ impl<const T0: i32> SwitchControl<T0>
             mode_switch_delay_counter: 0,
             cv_pid: PID::<10000, T0>::new(100, 50, 50, cv_target, 0, 0, pwm_max * 10000),
             mppt: MPPT::<200, 0>::new(3*pwm_max/4, 0, pwm_max),
-            imp_ctrl: ImpedanceControl::<T0, 11000, 15000>::new(1000, pwm_max),
+            imp_ctrl: ImpedanceControl::<T0, 5400, 1000>::new(1000, pwm_max),
             pwm_max,
             pwm_cur: 0,
             cv_target,