if you pull up the custom Cree, there is a DEEP red die listed. not sure how it compares to the Rebel Deep Red die but it is there.
http://www.thecustomsabershop.com/Cu...LED-P1035.aspx

I will say though, I have used one Rebel Deep Red LED in a build and it does not have the same lumens rating as a CREE. The Rebel Red has a max current rating of 750mA and the Crees' have 1000mA. More Current more lumens.