This chart shown here compares the price and performance lines of the first and second generation of discrete XLamp LEDs. Cree has enabled several paths to upgrade for those who have designed in the original XP and XM LEDs. Those looking for a lower cost alternative to the XM-L, the XP-G2 now gives the comparable performance at a lower cost and if looking for a high performance product at comparable price to the original XM-L, the XM-L2 is a great alternative.