AC Dimmer time control

I use as board this one.

and for 230volt output this.
http://www.inmojo.com/store/krida-electronics/item/4-channel-ac-light-dimmer-arduino--v2/#shipping
The i use is the code you send to my.

#include <TimeLib.h>
#include <TimeAlarms.h>

//AlarmId id;

int AC_LOAD1 = 10; // Output to Opto Triac pin
int AC_LOAD2 = 11; // Output to Opto Triac pin
volatile int dimming1 = 128; // Dimming level (0-128) 0 = ON, 128 = OFF
volatile int dimming2 = 128; // Dimming level (0-128) 0 = ON, 128 = OFF

void setup() {

  // Initialize Serial and wait for port to open:
  // Bridge.begin();
  Serial.begin(115200);

  setTime(8, 29, 30, 1, 1, 11); // set time to Saturday 8:29:30am Jan 1 2011

  // create the alarms, to trigger at specific times
  Alarm.alarmRepeat(8, 30, 0, LightOn); // 8:30am every day
  Alarm.alarmRepeat(8, 33, 30, LightOff); // 8:30;30am every day


  pinMode(AC_LOAD1, OUTPUT); // Set the AC Load as output
  pinMode(AC_LOAD2, OUTPUT); // Set the AC Load as output

  attachInterrupt(0, zero_crosss_int, RISING); // Choose the zero cross interrupt # from the table above
}

void loop() {
  Serial.print("min/sec ");
  digitalClockDisplay();
  Serial.println("dimming values");
  Serial.print(dimming1);
  Serial.print(":");
  Serial.println(dimming2);
  Alarm.delay(1000); // wait one second between clock display
}

// functions to be called when an alarm triggers:
void LightOn() {
  dimming1 = 10; //Full = 0
  dimming2 = 1; //Full = 0
}

void LightOff() {
  dimming1 = 128; //Off = 128
  dimming2 = 120; //Off = 128
}

void digitalClockDisplay() {
  // digital clock display of the time
  //Serial.print(hour());
  printDigits(minute());
  Serial.print(":");
  printDigits(second());
  Serial.println();
}

void printDigits(int digits) {
  //Serial.print(":");
  if (digits < 10)
    Serial.print('0');
  Serial.print(digits);
}

void zero_crosss_int() // function to be fired at the zero crossing to dim the light
{
  // Firing angle calculation :: 50Hz-> 10ms (1/2 Cycle)
  // (10000us - 10us) / 128 = 75 (Approx)
  int dimtime1 = (75 * dimming1);
  int dimtime2 = (75 * dimming2);

  if ( dimtime1 > dimtime2)
  { delayMicroseconds(dimtime2);
    digitalWrite(AC_LOAD2, HIGH);
    delayMicroseconds(10);
    digitalWrite(AC_LOAD2, LOW);

    delayMicroseconds( dimtime1 - dimtime2);
    digitalWrite(AC_LOAD1, HIGH);
    delayMicroseconds(10);
    digitalWrite(AC_LOAD1, LOW);
  }
  else
  { delayMicroseconds(dimtime1);
    digitalWrite(AC_LOAD1, HIGH);
    delayMicroseconds(10);
    digitalWrite(AC_LOAD1, LOW);

    delayMicroseconds( dimtime2 - dimtime1);
    digitalWrite(AC_LOAD2, HIGH);
    delayMicroseconds(10);
    digitalWrite(AC_LOAD2, LOW);
  }
}

A little bit misunderstanding, i changed the value "LightOff" from 0 to 50.
To find out how the board works with the value"50" this to see what happens with the time .

Regards Henk,