Hamilton 20 k bulb's

[taxidermy10]

Has anyone ever tried the 20k hamilton metal halide bulb's?
I have 3 15k 250 watt xm's over one tank.
I need to buy four 400 watt bulb's I wanted 20k bulb's and was ready to order 4 new Xm 20 k's then I found a sale for 20K Hamilton's for $50.00

If you have tried them, what do you think, also how is the par value compaired to the Xm bulb?
Thank's
Lou

 

[bc_slc]

great question, I am curious as well as my next bulbs will be 20k. Where did you find them for $50.

 

[Dr. Dee]

Hey i used that 20k before and it's no good!! Because the color shift's within a month and thats no lie. three time no no!! from 20k to 10k