20k double end MH bulbs 150 watt

[Jeremie]

Was wondering if anyone has seen any of these or knows even if they make them I know phoniex doesnt make one or I just cant find it any input would be great

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[this is me]

I see at least 4 different kinds of 20K 150w DE.
http://www.reefgeek.com/lighting/metal-halide/bulbs/150-watt-de-double-ended.html

 

[this is me]

And Radium(well known in the SE world) is among one of the choices.