diff --git a/src/main.cpp b/src/main.cpp
index 49c0c47..98d7f99 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -21,9 +21,9 @@ void setup() {
     analogWriteResolution(PWM_RESOLUTION);
 
 #ifdef ARDUINO_ARCH_ESP8266
-    analogWriteFreq(PWM_FREQUENCY);
+    analogWriteFreq(std::min<uint32_t>(PWM_FREQUENCY, PWM_MAX_FREQUENCY));
 #else
-    analogWriteFrequency(PWM_FREQUENCY);
+    analogWriteFrequency(std::min<uint32_t>(PWM_FREQUENCY, PWM_MAX_FREQUENCY));
 #endif
 
     ApplicationInstance.begin();
diff --git a/src/sys_constants.h b/src/sys_constants.h
index 9cb9155..7d45001 100644
--- a/src/sys_constants.h
+++ b/src/sys_constants.h
@@ -24,6 +24,12 @@
 #define PWM_FREQUENCY                           (22000u)
 #define PWM_MAX_VALUE                           ((uint16_t)((1u << PWM_RESOLUTION) - 1))
 
+#ifdef ARDUINO_ARCH_ESP32
+#define PWM_MAX_FREQUENCY                       (40000000ul / (1u << PWM_RESOLUTION))
+#else
+#define PWM_MAX_FREQUENCY                       (60000ul)
+#endif
+
 #define NTP_UPDATE_INTERVAL                     (24ul * 3600 * 1000)
 
 #define GAMMA                                   (2.2f)
diff --git a/www/src/props.js b/www/src/props.js
index 8723cd2..fce6fd5 100644
--- a/www/src/props.js
+++ b/www/src/props.js
@@ -1,4 +1,5 @@
 import {PacketType} from "./cmd.js";
+import {PWM_MAX_VALUE, TEMPERATURE_MAX_VALUE} from "./sys_constants.js";
 
 /**@type {PropertiesConfig} */
 export const PropertyConfig = [{
@@ -9,14 +10,14 @@ export const PropertyConfig = [{
         {key: "showTemperature", type: "skip"},
 
         {key: "power", title: "Power", type: "trigger", kind: "Boolean", cmd: PacketType.POWER},
-        {key: "brightness", title: "Brightness", type: "wheel", limit: 16383, kind: "Uint16", cmd: PacketType.BRIGHTNESS},
+        {key: "brightness", title: "Brightness", type: "wheel", limit: PWM_MAX_VALUE, kind: "Uint16", cmd: PacketType.BRIGHTNESS},
 
         {key: "color", title: "Color", type: "color", kind: "Uint32", cmd: PacketType.COLOR, visibleIf: "rgbMode"},
         {key: "calibration", title: "Calibration", type: "color", kind: "Uint32", cmd: PacketType.CALIBRATION, visibleIf: "rgbMode"},
 
         {
-            key: "colorTemperature", title: "Color Temperature", type: "wheel", limit: 32767, kind: "Uint16", cmd: PacketType.TEMPERATURE,
-            anchor: 16383, anchorAmount: 0.02, anchored: true, visibleIf: "cctMode",
+            key: "colorTemperature", title: "Color Temperature", type: "wheel", limit: TEMPERATURE_MAX_VALUE, kind: "Uint16", cmd: PacketType.TEMPERATURE,
+            anchor: TEMPERATURE_MAX_VALUE / 2, anchorAmount: 0.02, anchored: true, visibleIf: "cctMode",
             displayConverter: function (value) {
                 const percent = value / this.limit * 100;
                 let converted;
@@ -29,14 +30,14 @@ export const PropertyConfig = [{
 
                 let [int, fraction] = converted.toFixed(1).split(".");
                 if (converted > 0) int = `+${int}`;
-                if(int === "-0") int = "0";
+                if (int === "-0") int = "0";
 
                 return fraction === "0" ? int : [int, `.${fraction}`];
             }
         },
 
         {
-            key: "colorTemperatureRgb", title: "Color Temperature", type: "wheel", limit: 32767, kind: "Uint16", cmd: PacketType.TEMPERATURE,
+            key: "colorTemperatureRgb", title: "Color Temperature", type: "wheel", limit: TEMPERATURE_MAX_VALUE, kind: "Uint16", cmd: PacketType.TEMPERATURE,
             visibleIf: "rgbMode",
             displayConverter: function (value) {
                 const {sysConfig: {ledMinTemperature, ledMaxTemperature}} = window.__app.app.config
@@ -50,7 +51,7 @@ export const PropertyConfig = [{
 }, {
     key: "night_mode", section: "Night Mode", collapse: true, props: [
         {key: "nightMode.enabled", title: "Enabled", type: "trigger", kind: "Boolean", cmd: PacketType.NIGHT_MODE_ENABLED},
-        {key: "nightMode.brightness", title: "Brightness", type: "wheel", limit: 16383, kind: "Uint16", cmd: PacketType.NIGHT_MODE_BRIGHTNESS},
+        {key: "nightMode.brightness", title: "Brightness", type: "wheel", limit: PWM_MAX_VALUE, kind: "Uint16", cmd: PacketType.NIGHT_MODE_BRIGHTNESS},
         {key: "nightMode.startTime", title: "Start Time", type: "time", kind: "Uint32", cmd: PacketType.NIGHT_MODE_START},
         {key: "nightMode.endTime", title: "End Time", type: "time", kind: "Uint32", cmd: PacketType.NIGHT_MODE_END},
         {key: "nightMode.switchInterval", title: "Switch Interval", type: "time", kind: "Uint16", cmd: PacketType.NIGHT_MODE_INTERVAL},
diff --git a/www/src/sys_constants.js b/www/src/sys_constants.js
new file mode 100644
index 0000000..f8d93ae
--- /dev/null
+++ b/www/src/sys_constants.js
@@ -0,0 +1,3 @@
+export const PWM_RESOLUTION = 14;
+export const PWM_MAX_VALUE = (2 ** PWM_RESOLUTION - 1);
+export const TEMPERATURE_MAX_VALUE = PWM_MAX_VALUE * 2;
\ No newline at end of file