I2C command for Rainbowdash **Compiles, does not work**

#include <Wire.h>

void setup()
{
  Wire.begin();              // join i2c bus
}

void loop()
{
  Wire.beginTransmission(4); // transmit to device #4
    Wire.write(0x52);        //Transmit SHOW_COLOR command, white screen
    Wire.write(0x03);
    Wire.write(0x0F);
    Wire.write(0xFF);
    Wire.write((byte)0x00);  //(byte) included to remove ambiguity in command
   Wire.endTransmission();   // stop transmitting
}