You can not download, if you see them displayed in grey color.
File name/summary:   

  01 series module
  02 Series Module
  03 Series Module
  06 Series Module
  1.5W High Power
  1W High Power
  Catalog
  Flat Modules
  HOW TO CREATE A DOUBLE FACES BACK LIGHT LED CHANNEL LETTER
  How to take the modules out of the tray
  Installation guide
  JT LED MODULE APPLICATION CALCULATOR
  LED Illumination System for Channel Letters Installation Guide
  OPEN Sign Series
  Presentation
  project
  RGB Controller
  RGB Modules
  SMD Series
  Spec
  Switching Power Series
  THE BEST SERVICE CONDITIONS OF LED MODULES