pll intresting?

Hello peps i only use pll for my hobby grow and that suits me fine. Just wanted some input on these bulbs ive seen. i currently use an 865k..840k..827k. been wondering about the 10,000kelvin. and these.......................http://cgi.ebay.co.uk/T5-55W-BLUE-M...QptZUK_Pet_Supplies_Fish?hash=item5d2879de0ec
http://cgi.ebay.co.uk/T5-55W-Day-Li...QQptZUK_Pet_Supplies_Fish?hash=item5d2879de0e
and finally http://cgi.ebay.co.uk/T5-55W-Beauty...ZUK_Pet_Supplies_Fish?hash=item5d2879e133cccc