diff --git a/YAMDCC.GUI/MainWindow.Designer.cs b/YAMDCC.GUI/MainWindow.Designer.cs
index a5c906a..f91d0bf 100644
--- a/YAMDCC.GUI/MainWindow.Designer.cs
+++ b/YAMDCC.GUI/MainWindow.Designer.cs
@@ -97,16 +97,16 @@ private void InitializeComponent()
             this.lblWinFnSwap = new System.Windows.Forms.Label();
             this.chkWinFnSwap = new System.Windows.Forms.CheckBox();
             this.lblKeyLight = new System.Windows.Forms.Label();
+            this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
+            this.lblKeyLightLow = new System.Windows.Forms.Label();
             this.tbKeyLight = new System.Windows.Forms.TrackBar();
+            this.lblKeyLightHigh = new System.Windows.Forms.Label();
             this.flwStats = new System.Windows.Forms.FlowLayoutPanel();
             this.lblStatus = new System.Windows.Forms.Label();
             this.lblFanSpd = new System.Windows.Forms.Label();
             this.lblFanRPM = new System.Windows.Forms.Label();
             this.lblTemp = new System.Windows.Forms.Label();
             this.tmrPoll = new System.Windows.Forms.Timer(this.components);
-            this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
-            this.lblKeyLightLow = new System.Windows.Forms.Label();
-            this.lblKeyLightHigh = new System.Windows.Forms.Label();
             this.menuStrip.SuspendLayout();
             this.tblMain.SuspendLayout();
             this.tcMain.SuspendLayout();
@@ -118,9 +118,9 @@ private void InitializeComponent()
             this.tabOptions.SuspendLayout();
             this.tblExtra.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.numChgLim)).BeginInit();
+            this.flowLayoutPanel1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.tbKeyLight)).BeginInit();
             this.flwStats.SuspendLayout();
-            this.flowLayoutPanel1.SuspendLayout();
             this.SuspendLayout();
             // 
             // menuStrip
@@ -677,15 +677,49 @@ private void InitializeComponent()
             this.lblKeyLight.TabIndex = 8;
             this.lblKeyLight.Text = "Keyboard backlight:";
             // 
+            // flowLayoutPanel1
+            // 
+            this.flowLayoutPanel1.AutoSize = true;
+            this.flowLayoutPanel1.Controls.Add(this.lblKeyLightLow);
+            this.flowLayoutPanel1.Controls.Add(this.tbKeyLight);
+            this.flowLayoutPanel1.Controls.Add(this.lblKeyLightHigh);
+            this.flowLayoutPanel1.Location = new System.Drawing.Point(133, 83);
+            this.flowLayoutPanel1.Margin = new System.Windows.Forms.Padding(0);
+            this.flowLayoutPanel1.Name = "flowLayoutPanel1";
+            this.flowLayoutPanel1.Size = new System.Drawing.Size(229, 49);
+            this.flowLayoutPanel1.TabIndex = 10;
+            // 
+            // lblKeyLightLow
+            // 
+            this.lblKeyLightLow.Anchor = System.Windows.Forms.AnchorStyles.Left;
+            this.lblKeyLightLow.AutoSize = true;
+            this.lblKeyLightLow.Location = new System.Drawing.Point(3, 17);
+            this.lblKeyLightLow.Name = "lblKeyLightLow";
+            this.lblKeyLightLow.Size = new System.Drawing.Size(24, 15);
+            this.lblKeyLightLow.TabIndex = 10;
+            this.lblKeyLightLow.Text = "Off";
+            // 
             // tbKeyLight
             // 
+            this.tbKeyLight.Enabled = false;
             this.tbKeyLight.Location = new System.Drawing.Point(32, 2);
-            this.tbKeyLight.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+            this.tbKeyLight.Margin = new System.Windows.Forms.Padding(2);
             this.tbKeyLight.Maximum = 3;
             this.tbKeyLight.Name = "tbKeyLight";
             this.tbKeyLight.Size = new System.Drawing.Size(150, 45);
             this.tbKeyLight.TabIndex = 9;
             this.tbKeyLight.TickStyle = System.Windows.Forms.TickStyle.Both;
+            this.tbKeyLight.Scroll += new System.EventHandler(this.tbKeyLight_Scroll);
+            // 
+            // lblKeyLightHigh
+            // 
+            this.lblKeyLightHigh.Anchor = System.Windows.Forms.AnchorStyles.Left;
+            this.lblKeyLightHigh.AutoSize = true;
+            this.lblKeyLightHigh.Location = new System.Drawing.Point(187, 17);
+            this.lblKeyLightHigh.Name = "lblKeyLightHigh";
+            this.lblKeyLightHigh.Size = new System.Drawing.Size(39, 15);
+            this.lblKeyLightHigh.TabIndex = 11;
+            this.lblKeyLightHigh.Text = "Bright";
             // 
             // flwStats
             // 
@@ -745,38 +779,6 @@ private void InitializeComponent()
             this.tmrPoll.Interval = 1000;
             this.tmrPoll.Tick += new System.EventHandler(this.tmrPoll_Tick);
             // 
-            // flowLayoutPanel1
-            // 
-            this.flowLayoutPanel1.AutoSize = true;
-            this.flowLayoutPanel1.Controls.Add(this.lblKeyLightLow);
-            this.flowLayoutPanel1.Controls.Add(this.tbKeyLight);
-            this.flowLayoutPanel1.Controls.Add(this.lblKeyLightHigh);
-            this.flowLayoutPanel1.Location = new System.Drawing.Point(133, 83);
-            this.flowLayoutPanel1.Margin = new System.Windows.Forms.Padding(0);
-            this.flowLayoutPanel1.Name = "flowLayoutPanel1";
-            this.flowLayoutPanel1.Size = new System.Drawing.Size(229, 49);
-            this.flowLayoutPanel1.TabIndex = 10;
-            // 
-            // lblKeyLightLow
-            // 
-            this.lblKeyLightLow.Anchor = System.Windows.Forms.AnchorStyles.Left;
-            this.lblKeyLightLow.AutoSize = true;
-            this.lblKeyLightLow.Location = new System.Drawing.Point(3, 17);
-            this.lblKeyLightLow.Name = "lblKeyLightLow";
-            this.lblKeyLightLow.Size = new System.Drawing.Size(24, 15);
-            this.lblKeyLightLow.TabIndex = 10;
-            this.lblKeyLightLow.Text = "Off";
-            // 
-            // lblKeyLightHigh
-            // 
-            this.lblKeyLightHigh.Anchor = System.Windows.Forms.AnchorStyles.Left;
-            this.lblKeyLightHigh.AutoSize = true;
-            this.lblKeyLightHigh.Location = new System.Drawing.Point(187, 17);
-            this.lblKeyLightHigh.Name = "lblKeyLightHigh";
-            this.lblKeyLightHigh.Size = new System.Drawing.Size(39, 15);
-            this.lblKeyLightHigh.TabIndex = 11;
-            this.lblKeyLightHigh.Text = "Bright";
-            // 
             // MainWindow
             // 
             this.AcceptButton = this.btnApply;
@@ -813,11 +815,11 @@ private void InitializeComponent()
             this.tblExtra.ResumeLayout(false);
             this.tblExtra.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.numChgLim)).EndInit();
+            this.flowLayoutPanel1.ResumeLayout(false);
+            this.flowLayoutPanel1.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.tbKeyLight)).EndInit();
             this.flwStats.ResumeLayout(false);
             this.flwStats.PerformLayout();
-            this.flowLayoutPanel1.ResumeLayout(false);
-            this.flowLayoutPanel1.PerformLayout();
             this.ResumeLayout(false);
             this.PerformLayout();
 
diff --git a/YAMDCC.GUI/MainWindow.cs b/YAMDCC.GUI/MainWindow.cs
index fd2543f..ba8a575 100644
--- a/YAMDCC.GUI/MainWindow.cs
+++ b/YAMDCC.GUI/MainWindow.cs
@@ -187,6 +187,9 @@ private void MainWindow_Load(object sender, EventArgs e)
             }
 
             LoadConf(Path.Combine(DataPath, "CurrentConfig.xml"));
+
+            ServiceCommand command = new ServiceCommand(Command.GetKeyLightBright, "");
+            IPCClient.PushMessage(command);
         }
 
         private void MainWindow_Closing(object sender, FormClosingEventArgs e)
@@ -231,6 +234,17 @@ private void IPC_MessageReceived(object sender, PipeMessageEventArgs<ServiceResp
                             UpdateFanMon(value, 2);
                         }
                         break;
+                    case Response.KeyLightBright:
+                        if (int.TryParse(args[0], out value))
+                        {
+                            tbKeyLight.Invoke(new Action(delegate
+                            {
+                                tbKeyLight.Maximum = Config.KeyLightConf.MaxVal - Config.KeyLightConf.MinVal;
+                                tbKeyLight.Value = value;
+                                tbKeyLight.Enabled = true;
+                            }));
+                        }
+                        break;
                 }
             }
         }
@@ -544,6 +558,12 @@ private void chkWinFnSwap_CheckedChanged(object sender, EventArgs e)
             Config.KeySwapConf.Enabled = chkWinFnSwap.Checked;
         }
 
+        private void tbKeyLight_Scroll(object sender, EventArgs e)
+        {
+            ServiceCommand command = new(Command.SetKeyLightBright, $"{tbKeyLight.Value}");
+            IPCClient.PushMessage(command);
+        }
+
         private void btnRevert_Click(object sender, EventArgs e)
         {
 
diff --git a/YAMDCC.Service/svcFanControl.cs b/YAMDCC.Service/svcFanControl.cs
index 149e399..ad46ff8 100644
--- a/YAMDCC.Service/svcFanControl.cs
+++ b/YAMDCC.Service/svcFanControl.cs
@@ -194,6 +194,9 @@ private void IPCClientMessage(object sender, PipeMessageEventArgs<ServiceCommand
                 case Command.GetKeyLightBright:
                     error = GetKeyLightBright(e.Connection.Name);
                     break;
+                case Command.SetKeyLightBright:
+                    error = SetKeyLightBright(e.Connection.Name, e.Message.Arguments);
+                    break;
                 default:    // Unknown command
                     Log.Error(Strings.GetString("errBadCmd"), e.Message);
                     break;
@@ -607,17 +610,43 @@ private int SetFullBlast(string name, string args)
 
         private int GetKeyLightBright(string name)
         {
+            Log.Debug("Getting keyboard backlight brightness...");
             if (EC.AcquireLock(500))
             {
-                int offset = Config.KeyLightConf.MaxVal - Config.KeyLightConf.MinVal;
+                int offset = Config.KeyLightConf.MinVal;
                 if (_EC.ReadByte(Config.KeyLightConf.Reg, out byte brightness))
                 {
+                    Log.Debug($"Keyboard backlight brightness is {brightness}");
                     ServiceResponse response = new(Response.KeyLightBright, $"{brightness - offset}");
                     IPCServer.PushMessage(response, name);
                 }
+                else
+                {
+                    LogECReadError(Config.KeyLightConf.Reg);
+                }
                 EC.ReleaseLock();
+                return 0;
             }
-            return 0;
+            return 3;
+        }
+
+        private int SetKeyLightBright(string name, string args)
+        {
+            if (ParseArgs(args, 1, out int[] pArgs))
+            {
+                Log.Debug($"Setting keyboard backlight brightness to {pArgs[0]}...");
+                if (EC.AcquireLock(500))
+                {
+                    if (!_EC.WriteByte(Config.KeyLightConf.Reg, (byte)(pArgs[0] + Config.KeyLightConf.MinVal)))
+                    {
+                        LogECWriteError(Config.KeyLightConf.Reg);
+                    }
+                    EC.ReleaseLock();
+                    return 0;
+                }
+                return 3;
+            }
+            return 2;
         }
 
         private static void LogUnhandledException(object sender, UnhandledExceptionEventArgs e)