Solderless LEDs questions

[Spinner]

Looking to buy 120 solder less LEDs using a combo of Cree and Philips single LEDs. I can understand what I read about each LED but with the Cree the different numbers?
XM-L2
XP-E
XP-G
XP-G2
Any help would be welcomed

http://www.rapidled.com/solderless/?sort=featured&page=1

 

[SchnitzelReef]

Solderless??? Thought u were the king of DIY?? Soldering is easy, and the LEDs are cheaper. Man up!!! Go with Phillips Luxeon LEDs, I've had great success with them.