From what I heard Tek reflectors aren't as good as ATI or SLR by icecap.
And as seahorse_fanatic said you would have to purchase bulbs as well.
Check this out
https://www.customaquatic.com/custom...dexid=lt-t5-rt
I just purchased 2 of their 39W retros. They have spider parabolic reflectors as well. From what I heard these reflectors are better then Tek once and with these you get bulbs as well.
If you really want the same fixture, check this out (go down half page):
https://www.customaquatic.com/custom...dexid=lt-t5-sy
It's the same system you want for 50 bucks less and if you are a member of RC you will get 10% off as well.
Hope this helps