diff --git a/pykirdy/driver/kirdy.py b/pykirdy/driver/kirdy.py
index e479c2d..007e48b 100644
--- a/pykirdy/driver/kirdy.py
+++ b/pykirdy/driver/kirdy.py
@@ -309,7 +309,7 @@ class Device:
                     'tec_settings': {
                         'i_set': {                  # Current TEC Current Set by PID Controller/User (A)
                             'value': 0.04330516,        # Value Set
-                            'max': 1.0                  # Max Value Settable
+                            'max': 3.0                  # Max Value Settable
                         }, 
                         'max_v': {                  # Max Voltage Across Tec Terminals (V)
                             'value': 4.990857,          # Value Set
@@ -317,11 +317,11 @@ class Device:
                         }, 
                         'max_i_pos': {              # Max Cooling Current Across Tec Terminals (A)
                             'value': 0.99628574,        # Value Set
-                            'max': 1.0                  # Max Value Settable
+                            'max': 3.0                  # Max Value Settable
                         }, 
                         'max_i_neg': {              # Max Heating Current Across Tec Terminals (A)
                             'value': 0.99628574,        # Value Set
-                            'max': 1.0                  # Max Value Settable
+                            'max': 3.0                  # Max Value Settable
                         }
                     }, 
                     'pid_params': {                 # PID Controller Parameters
@@ -493,21 +493,21 @@ class Thermostat:
 
     async def set_tec_max_cooling_i(self, max_i_pos):
         """
-            Set Tec maximum cooling current (Settable Range: 0.0 - 1.0)
+            Set Tec maximum cooling current (Settable Range: 0.0 - 3.0)
                 - max_i_pos: A
         """
         return await self._send_cmd(self._cmd._target, self._cmd.SetTecMaxIPos, max_i_pos)
 
     async def set_tec_max_heating_i(self, max_i_neg):
         """
-            Set Tec maximum heating current (Settable Range: 0.0 - 1.0)
+            Set Tec maximum heating current (Settable Range: 0.0 - 3.0)
                 - max_i_neg: A
         """
         return await self._send_cmd(self._cmd._target, self._cmd.SetTecMaxINeg, max_i_neg)
 
     async def set_tec_i_out(self, i_out):
         """
-            Set Tec Output Current (Settable Range: 0.0 - 1.0)
+            Set Tec Output Current (Settable Range: 0.0 - 3.0)
             This cmd is only effective in constant current control mode 
             or your newly set value will be overwritten by PID Controller Output
                 - i_out: A
diff --git a/pykirdy/kirdy_qt.py b/pykirdy/kirdy_qt.py
index 0b8f579..7c32408 100644
--- a/pykirdy/kirdy_qt.py
+++ b/pykirdy/kirdy_qt.py
@@ -444,15 +444,15 @@ class MainWindow(QtWidgets.QMainWindow):
         {'name': 'Output Config', 'expanded': True, 'type': 'group', 'children': [
             {'name': 'Control Method', 'type': 'mutex', 'limits': ['Constant Current', 'Temperature PID'],
                 'target_action_pair': [['thermostat', 'set_constant_current_control_mode'], ['thermostat', 'set_pid_control_mode']], 'children': [
-                {'name': 'Set Current', 'type': 'float', 'value': 0, 'step': 1, 'limits': (-1000, 1000), 'triggerOnShow': True, 'decimals': 6,
+                {'name': 'Set Current', 'type': 'float', 'value': 0, 'step': 1, 'limits': (-3000, 3000), 'triggerOnShow': True, 'decimals': 6,
                     'unit': 'mA', 'lock': False, 'target': 'thermostat', 'action': 'set_tec_i_out', "compactHeight": False},
                 {'name': 'Set Temperature', 'type': 'float', 'value': 25, 'step': 0.0001, 'limits': (-273, 300), 'format': '{value:.4f}',
                     'unit': '℃', 'lock': False, 'target': 'thermostat', 'action': 'set_temperature_setpoint', "compactHeight": False},
             ]},
             {'name': 'Limits', 'expanded': False, 'type': 'group', 'children': [
-                {'name': 'Max Cooling Current', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (0, 1000),
+                {'name': 'Max Cooling Current', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (0, 3000),
                     'unit': 'mA', 'lock': False, 'target': 'thermostat', 'action': 'set_tec_max_cooling_i', "compactHeight": False},
-                {'name': 'Max Heating Current', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (0, 1000),
+                {'name': 'Max Heating Current', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (0, 3000),
                     'unit': 'mA', 'lock': False, 'target': 'thermostat', 'action': 'set_tec_max_heating_i', "compactHeight": False},
                 {'name': 'Max Voltage Difference', 'type': 'float', 'value': 0, 'step': 0.1, 'limits': (0, 4),
                     'unit': 'V', 'lock': False, 'target': 'thermostat', 'action': 'set_tec_max_v', "compactHeight": False},
diff --git a/src/thermostat/thermostat.rs b/src/thermostat/thermostat.rs
index 819cc00..5df8068 100644
--- a/src/thermostat/thermostat.rs
+++ b/src/thermostat/thermostat.rs
@@ -57,14 +57,10 @@ impl TecSettings {
         units: PhantomData,
         value: 1.65,
     };
-
-    // Kirdy Design Specs:
-    // MaxV = 5.0V
-    // MAX Current = +- 1.0A
     const MAX_I_SET: ElectricCurrent = ElectricCurrent {
         dimension: PhantomData,
         units: PhantomData,
-        value: 1.0,
+        value: 3.0,
     };
     const MAX_V_DUTY_TO_VOLTAGE_RATE: ElectricPotential = ElectricPotential {
         dimension: PhantomData,
@@ -86,12 +82,12 @@ impl TecSettings {
     pub const MAX_I_POS_CURRENT: ElectricCurrent = ElectricCurrent {
         dimension: PhantomData,
         units: PhantomData,
-        value: 1.0,
+        value: 3.0,
     };
     pub const MAX_I_NEG_CURRENT: ElectricCurrent = ElectricCurrent {
         dimension: PhantomData,
         units: PhantomData,
-        value: 1.0,
+        value: 3.0,
     };
     // .get::<ratio>() is not implemented for const
     const MAX_I_POS_DUTY_MAX: f64 =