I am stuck between buying an Apex Jr or the Apex Lite...... I mainly want it to control my Led lighting...monitor my ph and temp....not sure what else i can do with the new Apex...... i already have a AC Jr with a DC8,lunar simulater and a expansion outlet....will any of this work on the Apex Jr or Lite ?????? Which of these would you buy...the Apex Jr or the Apex Lite ???? What is the differance???