Mh bulbs

[reefcity]

What the most blue bulb on the market 20k 250 watt ????

 

[Troylee]

Xm20k

 

[reefcity]

Am using radium and they told me they are but I don't think so
Has anyone tried spectra-chrome lamps ( elos )

 

[Troylee]

Xm20ks are the bluest your gonna get... Par and everything else sucks but the color is awesome... I run radiums now there not even close to being as blue but the par is great.... Radium are more 14k

 

[CookieJar]

XM20K is more blue than Radium 20K. I use both and like both, but for different reasons. Radium 20K has much better par and is brighter, but not as blue.

 

[reefcity]

Dies it metter what ballasts am runing b/c am runing lumatek electronic dimmable / multi-wattage ballast

 

[Troylee]

with radiums it does but not the xms..... radium are European bulbs that need a m80 mag "hqi" ballast to fire properly.... pfo made them but there discontinued.....