dish 1000.4 technical questions

[sherman22]

Here's my question and someone who installs on the weekends for our local a/v store. I'm installing my first ea/wa 1000.4 and hoping the shop ordered the right stuff. Is there two different lnb's for the 1k.4 depending on the arch and where can I get a list of a/e/s for both archs? Thx in advance.