So for what its worth, I was due for replacement T5's so I went on http://www.reefgeek.com to look. The homepage said $10 off your purchase of $75 or more. I purchased 4 - 54W T5's... 2-B+, 1-C+, 1-P+. The total with shipping was supposed to be roughly $95.... When I applied the promo code "Fat Tuesday" it took off $40!! So I only paid $55 with shipping for 4 new ATI bulbs. Pretty pumped, not sure if it was a mistake on the site or not. But either way, may want to try it out if you need anything. Good luck.