Please dont get the pink,,,LOL,, you know they are using them...... but its for looks only.. You know that.... The 20k and 50k bulbs is listed in the same area..but the really cool thing about them is their universal Burn.. so technically if you BB your tank you could,,,, well,,, im not going to suggest putting halides under your corals,, hehe..... but you could fire them at angles the way they did,, it really makes sense.... I need to send you the PM that me and dana are kinda going back and forth over