static void Main()
{
    double level = 0;

    while (true)
    {
       level = BrainPad.LightSensor.ReadLightLevel();

       if (level < 50)
       {
         BrainPad.LightBulb.TurnWhite();
       }
       else
       {
         BrainPad.LightBulb.TurnOff();
       }
    }
}