In 2008, Holiday Creations will begin manufacturing their commercial grade LED as rectified sets, whereas the older commercial grade LED sets have their rectification in the adapter cord. There are only a couple of differences that will affect the consumer:
1. If you are purchasing new "rectified" commercial grade LED lights (whose item numbers end in -RY), you will need 1 Power Cord (item C05065-RY) for every 58 sets of lights to be connected.
If you are purchasing the older "non-rectified" commercial grade LED lights (item numbers NOT ending in -RY), you will need 1 Power Adapter (item C05002) for every 58 sets of lights to be connected.
2. Important: You MAY NOT connect non-rectified sets (older) of commercial grade LED lights to rectified sets (newer).
The older non-rectified sets need to be connected to the power source through their adapter, which is rectified.
You also may not connect the power cord (C05065-RY) that is meant for use with rectified sets to non-rectified sets.
Spacer wires and taps may be used with rectified or non-rectified sets.