Definitely EOI fixtures. As I said, red and green are older. Yellow is their current model.

The red on this traffic signal (in the picture) is a pixelated GE module though. But on the new pole on this intersection it has the red and the greens are diamond pattern.

Ahh ok. Never mind. The diamond patterns are EOI older and the yellow signals pattern is the current one.

You were right about the LED modules being EOI. I got one of the yellow modules for myself.

I still dunno why the yellow is different then the red and the green, all of them were made the same month 2011, There was a new signal getting put up with The two Diamond Pattern EOI LED modules and the Yellow was the other pattern, and all of them were made in 2011, I think April, same time. They had to take the EOI modules out of the signal because they needed arrows for the signal. (Didn't get to keep them as they had to send them back) I got to keep an extra yellow EOI module though.

Companies are known to run production together for a period of time before production ends on a brand. Its not heres and end date for this type, and tomorrow we are gonna start making the new type. In some cases two seperate brand lines develop. GE did this by splitting into three product markets. RX-11 (What people here refer to as "GElcore, although thats not the proper name), GT-1, and GT-X. Other brands like Dialight phase out their previous models and are on their fifth or sixth model.

When did they discontinue the Diamond Pattern EOIs?

I noticed you can see the LED's in the yellow EOI module with the lenses in front, it kind of gives it a star effect to it. And there is surprisingly lots of LED diodes in the EOI module, A lot more then the Dialight has.