const int LedPins[2] = {22, 44 };
const unsigned long InitialDelay = 3600000; // 60 minutes
const unsigned long DelayBetweenPulses = 600000; // 10 minutes
const unsigned long PulseDuration = 10000; // 10 seconds

boolean firstRun = true;
unsigned long nextPulseMillis;

void setup()
{
  for (int i = 0; i < 2; i++)
  {
     pinMode(LedPins[i], OUTPUT);
  }

  delay(InitialDelay);
}

void loop()
{
    setVoltage(HIGH);
    delay(PulseDuration);
    setVoltage(LOW);
    delay(DelayBetweenPulses);
}

void setVoltage(int voltage)
{
  for (int i = 0; i < 2; i++)
  {
     digitalWrite(LedPins[i], voltage);
  }
}