diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index 7108d3c..e88df6a 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -138,6 +138,7 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
         self.client_watcher.fan_update.connect(self.fan_update)
         self.client_watcher.report_update.connect(self.update_report)
         self.client_watcher.pid_update.connect(self.update_pid)
+        self.client_watcher.pwm_update.connect(self.update_pwm)
         self.client_watcher.thermistor_update.connect(self.update_thermistor)
         self.report_apply_btn.clicked.connect(
             lambda: self.client_watcher.set_update_s(self.report_refresh_spin.value())
@@ -302,6 +303,14 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
                 params[channel].child("Thermistor Config", "R₀").setValue(sh_param["params"]["r0"])
                 params[channel].child("Thermistor Config", "β").setValue(sh_param["params"]["b"])
 
+    @pyqtSlot(list)
+    def update_pwm(self, pwm_data):
+        for pwm_params in pwm_data:
+            channel = pwm_params["channel"]
+            with QSignalBlocker(params[channel]):
+                params[channel].child("Output Config", "Max Voltage").setValue(pwm_params["max_v"]["value"])
+                params[channel].child("Output Config", "Max Current").setValue(pwm_params["max_i_pos"]["value"])
+
 
 async def coro_main():
     args = get_argparser().parse_args()