diff --git a/package.json b/package.json
index ac9f552..8e96d73 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vvzvlad/node-red-contrib-rn-combined-nodes",
-  "version": "0.2.11",
+  "version": "0.2.12",
   "description": "",
   "main": "index.js",
   "keywords": [
diff --git a/thermostat.js b/thermostat.js
index 7da1a24..d7bd146 100644
--- a/thermostat.js
+++ b/thermostat.js
@@ -11,15 +11,15 @@ module.exports = function(RED) {
         const HEAT_OFF_THRESHOLD = 0.2
         let debug = ""
 
-        let pwm_timer = null
-        context.set("pwm_period", 10000) //30*60*1000)
-        context.set("pwm_tick", 1000)
+        let pwm_timer = null;
+        context.set("pwm_period", 10000); // 10 секунд
+        context.set("pwm_tick", 1000); // 1 секунда
 
         function manage_pwm(duty_cycle_percent) {
             if (duty_cycle_percent === -1) {
                 if (pwm_timer !== null) {
-                    clearInterval(pwm_timer)
-                    pwm_timer = null
+                    clearInterval(pwm_timer);
+                    pwm_timer = null;
                 }
                 return;
             }
@@ -34,7 +34,7 @@ module.exports = function(RED) {
                 pwm_timer = setInterval(() => {
                     const pwm_period = context.get("pwm_period");
                     const elapsed_time = Date.now() - cycle_start_time;
-                    const on_time = pwm_period * pwm_duty_cycle;
+                    const on_time = pwm_period * context.get("pwm_duty_cycle");
 
                     if (elapsed_time >= pwm_period) {
                         cycle_start_time = Date.now();
@@ -50,6 +50,7 @@ module.exports = function(RED) {
             }
         }
 
+
         function debug_text(text) {
             if (text === "return_debug") {
                 let debug_tmp = debug