Error compiling

I’ve trying to make this code work, but when i try it to upload it gives me an error of compiling.

projecte_310714_prova_complerta.ino:65:19: error: invalid suffix “LOW” on floating constant

This is the code:

#include "DHT.H"  //Llibreria del sensor DHT11
#define DHTPIN 2 // connectat al pìn 2 (DIGITAL)
#define DHTTYPE DHT11
DHT dht (DHTPIN, DHTTYPE);
const int LDR = A0;  //connectat al pin A0 (ANALOG)

int push1=0;
int push2=0;
int push3=0;

void setup ()  {
  Serial.begin (9600);
  pinMode (13,OUTPUT);
  pinMode (12,OUTPUT);
  pinMode (11,OUTPUT);
  pinMode (10,OUTPUT);
  pinMode (9,OUTPUT);
  pinMode (8,OUTPUT);
}
  
void loop ()  {
  float h = dht.readHumidity ();
  float t = dht.readTemperature();

  if  (isnan (t) || isnan (h)) {
    Serial.println ("No funciona (Error)");
  }  
  
     else {
  Serial.print ("Humitat:  ");
  Serial.print (h);
  Serial.print (" %\t");
  Serial.print ("Temperatura:  ");
  Serial.print (t);
  Serial.println (" *C");  }
  
  int LDRValor = analogRead (LDR);
  float voltatge = 0.048828125*LDRValor; 
  int lux = (25000/voltatge-50)/10;            
  Serial.println (lux);
  
  push1 = digitalRead (5);
  push2 = digitalRead (4);
  push3 = digitalRead (3);
  
  if ((push1 == HIGH) && (t > 17) || (t < 27)) {
    digitalWrite (13,HIGH);
    digitalWrite (12,LOW);
  }
  
  if ((push1 == HIGH) && (t <17) || (t > 27)) {
    digitalWrite (13,LOW);
    digitalWrite (12,HIGH);
  }
  
  if ((push1 == HIGH) && (h <30) || (h > 70)) {
    digitalWrite (11,HIGH);
    digitalWrite (10,LOW);
  }
  
  if ((push1 == HIGH) && (h < 30) || (h > 70)) {
    digitalWrite (11.LOW);
    digitalWrite (10,HIGH);
  }
  
  if ((push1 == HIGH) && (lux > 250) || (lux < 500)) {
    digitalWrite (9,HIGH);
    digitalWrite (8,LOW);
  }
  
  if ((push1 == HIGH) && (lux < 250) || (lux > 500)) {
    digitalWrite (9,LOW);
    digitalWrite (8,HIGH);
  }
    

  
    
}

Typo:

    digitalWrite (11.LOW);

should be a comma instead.

Thank you