http://www.umnitza.com/images/4500Klowbeam.jpg

http://www.umnitza.com/product_info.php?products_id=224&osCsid=8418036d113ba49967e736adc29a057c

^

is there a price difference for 6000k?

if you go to the site, you'll see that yes, there is a price difference.