MH bulbs

What metal halide bulb brand and K rating is best?
Hamilton
Ushio
Radium
Xm
Iwasaki
Coralvue


Or any others i left out.

 

You left out Phoenix. But I have had experience with Xm and Coralvue. I do like Coralvue thus far.

 

First, you need to know what color temperature you like

Hamilton- ok bulbs... very blue though
Ushio- the 10 and 14k are very high quality, its more of a white bulb though
Radium- amazing color and really good growth. one of the best bulbs out there
Xm- they are all really good bulbs with super high PAR... just not the best for color
Iwasaki- the 6500k or the 50,000k?
Coralvue- these bulbs are really bad. dont waste your time

Phoenix- amazing bulbs as well... right up there with radium. bettter PAR but the color is only slightly less than radiums

 

SPS South Pacific Seas. I love the color. Par is supposedly weak on 14K.

Dingo, do you have the sheets for the spa bulbs?

 

+1 on the SPS 14k being really bad... the 10k and the 20k are very high though! I think i may be trying the 10k out next.

Im on my iphone right now but pm me and i will send you some data when i get on a real computer today

 

Lets say best overall bulb in each temp rating. Being rated by color (to white or to blue) and par.

Radium and Phoenix being the top of the line in the 10k, 14k, and 20k.