Iwasaki's, how much actinic?

[Bryan]

Reefmaster:

The bulb is designated MT400DL/ BH. I am not sure if the 400 watt bulbs have a R version. This is definetely a newer model as the old one did not have a BIG resistor.

I am running it on regular M59 Metal Halide Ballast. If the bulb is run without actinics it is yellow, bt definetly not green.

Yup, everyody's prospective on color is different.

I also find if a tank has a blue background the color looks whiter, as opposed to using a black background.


<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by Reefmaster:
brian
is that a iwasaki 6500k, and if so is it the infamous R model? and i'm curious what type of ballast its running on. hmm, i would have expected a 10K lamp with that much actinic to be really blue and fme that 6500k if running properly should have been crisp white with a hint of blue. don't we all just love the qualitative description of light colour!
shane<hr></blockquote>