I have been looking at the two lights for a while just to see what they were like. They seem the same. Are they? Is it like Pila and Wolf-Eyes? same design but different distributor? The X-11 costs more so I would expect it to be better in some way. HA III perhaps? They even both say what wattage the light has on the pocket clip. Here is the link.
http://www.glowbug.com/product.php?sku=302
http://www.glowbug.com/product.php?sku=302