diff --git a/WebDoorCreator.Data/Controllers/WebDoorCreatorController.cs b/WebDoorCreator.Data/Controllers/WebDoorCreatorController.cs
index 7bd00ac..157cbf4 100644
--- a/WebDoorCreator.Data/Controllers/WebDoorCreatorController.cs
+++ b/WebDoorCreator.Data/Controllers/WebDoorCreatorController.cs
@@ -2,12 +2,9 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using NLog;
-using System.Collections.Generic;
-using System.ComponentModel.Design;
 using System.Data;
 using WebDoorCreator.Data.DbModels;
 using WebDoorCreator.Data.DTO;
-using static WebDoorCreator.Core.Enum;
 
 namespace WebDoorCreator.Data.Controllers
 {
@@ -404,6 +401,7 @@ namespace WebDoorCreator.Data.Controllers
             await Task.Delay(1);
             return dbResult;
         }
+
         /// <summary>
         /// Getting door data by orderId
         /// </summary>
@@ -473,6 +471,30 @@ namespace WebDoorCreator.Data.Controllers
             return fatto;
         }
 
+        /// <summary>
+        /// Estraggo tutte le lingue disponibili per questa applicazione
+        /// </summary>
+        /// <returns></returns>
+        public List<LanguageModel> LanguageGetAll()
+        {
+            List<LanguageModel> dbResult = new List<LanguageModel>();
+            using (WDCDataContext localDbCtx = new WDCDataContext(_configuration))
+            {
+                try
+                {
+                    // extracting entire set
+                    dbResult = localDbCtx
+                                .DbSetLanguages
+                                .ToList();
+                }
+                catch (Exception exc)
+                {
+                    Log.Error($"Error in LanguageGetAll:{Environment.NewLine}{exc}");
+                }
+            }
+            return dbResult;
+        }
+
         /// <summary>
         /// ListValues list (All)
         /// </summary>
@@ -801,7 +823,6 @@ namespace WebDoorCreator.Data.Controllers
             }
             return dbResult;
         }
-
         public Dictionary<string, Dictionary<string, string>> VocLemmaGetAll()
         {
             Dictionary<string, Dictionary<string, string>> DTOResult = new Dictionary<string, Dictionary<string, string>>();
@@ -824,7 +845,7 @@ namespace WebDoorCreator.Data.Controllers
                     foreach (var lingua in lingue)
                     {
                         Dictionary<string, string> dict = new Dictionary<string, string>();
-                        foreach (var lemma in allVoc.Where(x=>x.Lingua == lingua))
+                        foreach (var lemma in allVoc.Where(x => x.Lingua == lingua))
                         {
                             dict.Add(lemma.Lemma, lemma.Traduzione);
                         }
@@ -880,6 +901,7 @@ namespace WebDoorCreator.Data.Controllers
             }
             return fatto;
         }
+
         #endregion Public Methods
 
         #region Private Fields
diff --git a/WebDoorCreator.UI/Components/Gen/NavMenuHorizontal.razor.cs b/WebDoorCreator.UI/Components/Gen/NavMenuHorizontal.razor.cs
index 646db5b..be64d9f 100644
--- a/WebDoorCreator.UI/Components/Gen/NavMenuHorizontal.razor.cs
+++ b/WebDoorCreator.UI/Components/Gen/NavMenuHorizontal.razor.cs
@@ -19,7 +19,7 @@ namespace WebDoorCreator.UI.Components.Gen
         public EventCallback<string> E_UserRole { get; set; }
         public EventCallback<string> E_UserId { get; set; }
 
-        public EventCallback<List<Dictionary<string, Dictionary<string, string>>>> E_VocLemmas { get; set; }
+        public EventCallback<Dictionary<string, Dictionary<string, string>>> E_VocLemmas { get; set; }
 
         public List<CompanyModel> listCompanies { get; set; } = new List<CompanyModel>();
 
@@ -101,7 +101,6 @@ namespace WebDoorCreator.UI.Components.Gen
             WDCUService.EA_UserClaims -= OnNewUserClaims;
             WDCUService.EA_UserCurrCompany -= OnNewUserCurrComp;
             WDCUService.EA_UserId -= OnNewUserId;
-            WDCVService.EA_VocabularyLemmas -= OnNewVocLemma;
         }
 
         public async void OnNewUserClaims()
@@ -196,9 +195,19 @@ namespace WebDoorCreator.UI.Components.Gen
             WDCUService.EA_UserClaims += OnNewUserClaims;
             WDCUService.EA_UserCurrCompany += OnNewUserCurrComp;
             WDCUService.EA_UserId += OnNewUserId;
-            WDCVService.EA_VocabularyLemmas += OnNewVocLemma;
+            //WDCVService.EA_VocabularyLemmas += OnNewVocLemma;
         }
 
+        //protected override async Task OnAfterRenderAsync(bool firstRender)
+        //{
+        //    if (firstRender)
+        //    {
+        //        listVocLemmas = new Dictionary<string, Dictionary<string, string>>();
+
+        //        listVocLemmas = await WDCService.VocLemmaGetAll();
+        //    }
+        //}
+
         protected override async Task OnParametersSetAsync()
         {
             await Task.Delay(1);
@@ -221,10 +230,6 @@ namespace WebDoorCreator.UI.Components.Gen
             // reset preliminare
             listRecord = new List<string>();
             listCompanies = new List<CompanyModel>();
-            listVocLemmas = new Dictionary<string, Dictionary<string, string>>();
-            //await WDCService.FlushRedisCache();
-
-            listVocLemmas = await WDCService.VocLemmaGetAll();
 
             var user = await _userManager.FindByNameAsync(currUser);
             if (user != null)
diff --git a/WebDoorCreator.UI/Components/Hardware/HardwareList.razor.cs b/WebDoorCreator.UI/Components/Hardware/HardwareList.razor.cs
index f860b7d..0074d0e 100644
--- a/WebDoorCreator.UI/Components/Hardware/HardwareList.razor.cs
+++ b/WebDoorCreator.UI/Components/Hardware/HardwareList.razor.cs
@@ -1,7 +1,9 @@
 using Microsoft.AspNetCore.Components;
+using System.Globalization;
 using WebDoorCreator.Data.DbModels;
 using WebDoorCreator.UI.Data;
 
+
 namespace WebDoorCreator.UI.Components.Hardware
 {
     public partial class HardwareList
@@ -24,11 +26,12 @@ namespace WebDoorCreator.UI.Components.Hardware
             }
         }
 
+        //CultureInfo ci = CultureInfo.InstalledUICulture;
         protected string translate(string lemma)
         {
             string answ = "";
 
-            answ = WDVService.traduci("IT",lemma);
+            answ = WDVService.traduci("EN", lemma);
 
             return answ;
         }
diff --git a/WebDoorCreator.UI/Data/WDCUserService.cs b/WebDoorCreator.UI/Data/WDCUserService.cs
index 7431177..1af9414 100644
--- a/WebDoorCreator.UI/Data/WDCUserService.cs
+++ b/WebDoorCreator.UI/Data/WDCUserService.cs
@@ -12,6 +12,9 @@
 
         public event Action EA_UserCurrCompany = null!;
 
+        public event Action EA_CurrLanguage = null!;
+
+
         #endregion Public Events
 
         #region Public Properties
@@ -67,7 +70,18 @@
                 }
             }
         }
-
+        public string? currLanguage
+        {
+            get => _currLanguage;
+            set
+            {
+                if (_currLanguage != value)
+                {
+                    _currLanguage = value;
+                    reportCurrentLanguage();
+                }
+            }
+        }
         #endregion Public Properties
 
         #region Protected Methods
@@ -103,7 +117,13 @@
                 EA_UserCurrCompany?.Invoke();
             }
         }
-
+        protected void reportCurrentLanguage()
+        {
+            if (EA_CurrLanguage != null)
+            {
+                EA_CurrLanguage?.Invoke();
+            }
+        }
         #endregion Protected Methods
 
         #region Private Properties
@@ -112,6 +132,7 @@
         private List<string>? _userClaims { get; set; } = null;
         private string _userRole { get; set; } = "";
         private int _userCurrComp { get; set; } //= -1;
+        private string? _currLanguage { get; set; } = null;
 
         #endregion Private Properties
     }
diff --git a/WebDoorCreator.UI/Data/WDCVocabularyService.cs b/WebDoorCreator.UI/Data/WDCVocabularyService.cs
index 88e36e2..5c3c33c 100644
--- a/WebDoorCreator.UI/Data/WDCVocabularyService.cs
+++ b/WebDoorCreator.UI/Data/WDCVocabularyService.cs
@@ -1,10 +1,53 @@
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion.Internal;
+using Microsoft.AspNetCore.Identity.UI.Services;
+using Newtonsoft.Json;
+using NLog;
+using Org.BouncyCastle.Asn1.X500;
+using StackExchange.Redis;
+using System.Diagnostics;
+using WebDoorCreator.Data.Controllers;
 
 namespace WebDoorCreator.UI.Data
 {
     public class WDCVocabularyService
     {
-        public event Action EA_VocabularyLemmas = null!;
+        public static WebDoorCreatorController dbController = null!;       
+
+        public WDCVocabularyService(IConfiguration configuration, IConnectionMultiplexer redisConnMult, IEmailSender emailSender)
+        {
+            _configuration = configuration;
+            _emailSender = emailSender;
+            // Conf cache
+            redisConn = redisConnMult;
+            redisDb = this.redisConn.GetDatabase();
+
+            // json serializer... FIX errore loop circolare https://www.ryadel.com/en/jsonserializationexception-self-referencing-loop-detected-error-fix-entity-framework-asp-net-core/
+            JSSettings = new JsonSerializerSettings()
+            {
+                ReferenceLoopHandling = ReferenceLoopHandling.Ignore
+            };
+
+            // cod app
+            CodApp = _configuration["CodApp"];
+            // Conf DB
+            string connStr = _configuration.GetConnectionString("WDC.DB");
+            if (string.IsNullOrEmpty(connStr))
+            {
+                Log.Info("ConnString empty!");
+            }
+            else
+            {
+                dbController = new WebDoorCreatorController(configuration);
+            }
+
+            if(VocabularyLemmas == null)
+            {
+                VocabularyLemmas = Task.Run(async () => await VocLemmaGetAll()).Result;
+            }
+
+            Log.Info("Avviata classe WDCVocabularyService");
+        }       
+        
+        
 
         public Dictionary<string, Dictionary<string, string>>? VocabularyLemmas
         {
@@ -14,11 +57,18 @@ namespace WebDoorCreator.UI.Data
                 if (_vocabularyLemmas != value)
                 {
                     _vocabularyLemmas = value;
-                    reportVocabularyLemmas();
                 }
             }
         }
 
+
+        private Dictionary<string, Dictionary<string, string>>? _vocabularyLemmas { get; set; } = null;
+
+        private TimeSpan UltraLongCache
+        {
+            get => TimeSpan.FromSeconds(cacheTtlLong * 10 * rnd.Next(900, 1100) / 1000);
+        }
+
         public string traduci(string lingua, string lemma)
         {
             string answ = $"[{lemma}]";
@@ -34,14 +84,74 @@ namespace WebDoorCreator.UI.Data
             return answ;
         }
 
-        protected void reportVocabularyLemmas()
+        public async Task<Dictionary<string, Dictionary<string, string>>?> VocLemmaGetAll()
         {
-            if (EA_VocabularyLemmas != null)
+            string source = "DB";
+            Dictionary<string, Dictionary<string, string>>? dbResult = new Dictionary<string, Dictionary<string, string>>();
+            // cerco da cache
+            Stopwatch stopWatch = new Stopwatch();
+            stopWatch.Start();
+            string currKey = $"{rKeyVocLemma}";
+            string? rawData = await redisDb.StringGetAsync(currKey);
+            if (!string.IsNullOrEmpty(rawData))
             {
-                EA_VocabularyLemmas?.Invoke();
+                source = "REDIS";
+                var tempResult = JsonConvert.DeserializeObject<Dictionary<string, Dictionary<string, string>>>(rawData);
+                if (tempResult == null)
+                {
+                    dbResult = new Dictionary<string, Dictionary<string, string>>();
+                }
+                else
+                {
+                    dbResult = tempResult;
+                }
             }
+            else
+            {
+                dbResult = dbController.VocLemmaGetAll();
+                rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
+                await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
+            }
+            if (dbResult == null)
+            {
+                dbResult = new Dictionary<string, Dictionary<string, string>>();
+            }
+            stopWatch.Stop();
+            TimeSpan ts = stopWatch.Elapsed;
+            Log.Debug($"VocLemmaGetAll | {source} in: {ts.TotalMilliseconds} ms");
+            return dbResult;
         }
 
-        private Dictionary<string, Dictionary<string, string>>? _vocabularyLemmas { get; set; } = null;
+
+        /// <summary>
+        /// Durata cache lunga IN SECONDI
+        /// </summary>
+        private int cacheTtlLong = 60 * 5;
+
+        /// <summary>
+        /// Oggetto per connessione a REDIS
+        /// </summary>
+        private IConnectionMultiplexer redisConn;
+
+        /// <summary>
+        /// Oggetto DB redis da impiegare x chiamate R/W
+        /// </summary>
+        private IDatabase redisDb = null!;
+
+        protected const string redisBaseAddr = "WDC";
+
+        protected const string rKeyVocLemma = $"{redisBaseAddr}:Cache:VocLemma";
+
+        protected Random rnd = new Random();
+
+        private static IConfiguration _configuration = null!;
+
+        private static JsonSerializerSettings? JSSettings;
+
+        private static NLog.Logger Log = LogManager.GetCurrentClassLogger();
+
+        private readonly IEmailSender _emailSender;
+
+        public string CodApp { get; set; } = "";
     }
-}
+}
\ No newline at end of file
diff --git a/WebDoorCreator.UI/Data/WebDoorCreatorService.cs b/WebDoorCreator.UI/Data/WebDoorCreatorService.cs
index 3dbecf0..97245e5 100644
--- a/WebDoorCreator.UI/Data/WebDoorCreatorService.cs
+++ b/WebDoorCreator.UI/Data/WebDoorCreatorService.cs
@@ -1,6 +1,5 @@
 using EgwCoreLib.Razor.Data;
 using Microsoft.AspNetCore.Identity.UI.Services;
-using Microsoft.CodeAnalysis.FlowAnalysis.DataFlow.ValueContentAnalysis;
 using Microsoft.EntityFrameworkCore;
 using Newtonsoft.Json;
 using NLog;
@@ -293,7 +292,6 @@ namespace WebDoorCreator.UI.Data
 
         public async Task<bool> VocLemmaInsert(string rootPath)
         {
-
             bool fatto = false;
 
             List<VocabularyTempModel> VocLemmas = new List<VocabularyTempModel>();
@@ -506,6 +504,7 @@ namespace WebDoorCreator.UI.Data
             Log.Debug($"DoorOpGetByDoorId | {source} in: {ts.TotalMilliseconds} ms");
             return dbResult;
         }
+
         public async Task<Dictionary<string, Dictionary<string, string>>?> VocLemmaGetAll()
         {
             string source = "DB";
@@ -571,7 +570,7 @@ namespace WebDoorCreator.UI.Data
                 }
             }
             else
-            { 
+            {
             rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
             await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
             }
@@ -650,7 +649,6 @@ namespace WebDoorCreator.UI.Data
             return dbResult;
         }
 
-
         /// <summary>
         /// Update or add door
         /// </summary>
@@ -770,6 +768,49 @@ namespace WebDoorCreator.UI.Data
             return dbResult;
         }
 
+        /// <summary>
+        /// Estraggo tutte le lingue disponibili per questa applicazione
+        /// </summary>
+        /// <returns></returns>
+        public async Task<List<LanguageModel>?> LanguageGetAll()
+        {
+            string source = "DB";
+
+            List<LanguageModel>? dbResult = new List<LanguageModel>();
+            // cerco da cache
+            string currKey = $"{rKeyLanguage}";
+            Stopwatch stopWatch = new Stopwatch();
+            stopWatch.Start();
+            string? rawData = await redisDb.StringGetAsync(currKey);
+            if (!string.IsNullOrEmpty(rawData))
+            {
+                source = "REDIS";
+                var tempResult = JsonConvert.DeserializeObject<List<LanguageModel>>(rawData);
+                if (tempResult == null)
+                {
+                    dbResult = new List<LanguageModel>();
+                }
+                else
+                {
+                    dbResult = tempResult;
+                }
+            }
+            else
+            {
+                dbResult = dbController.LanguageGetAll();
+                rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
+                await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
+            }
+            if (dbResult == null)
+            {
+                dbResult = new List<LanguageModel>();
+            }
+            stopWatch.Stop();
+            TimeSpan ts = stopWatch.Elapsed;
+            Log.Debug($"LanguageGetAll | {source} in: {ts.TotalMilliseconds} ms");
+            return dbResult;
+        }
+
         /// <summary>
         /// Add new order
         /// </summary>
@@ -1146,7 +1187,11 @@ namespace WebDoorCreator.UI.Data
         protected const string rKeyUsers = $"{redisBaseAddr}:Cache:Users";
 
         protected const string rKeyUsersView = $"{redisBaseAddr}:Cache:UsersView";
+
         protected const string rKeyVocLemma = $"{redisBaseAddr}:Cache:VocLemma";
+
+        protected const string rKeyLanguage = $"{redisBaseAddr}:Cache:Languages";
+
         protected Random rnd = new Random();
 
         #endregion Protected Fields