HPS bulb... PLANTMAX or ULTRASUN

Does anyone know if these are some of the better bulbs, ive decided to get a 400 hps digital system in case of expansion or whatever... I also want to get a 250w bulb bc i think my box may be to small for the 400w...

I use plantmax they work great and i save money.
Tried hi $$ hortilux and i couldnt see any diff. in plant growth & they cost more than 3x what plantmax does.

Keif are you doing a jornal or thread on your df ww.If so hit me up i want to follow,i thought you were doing one.
I made a mistake you dont need to take them 75dys only 65dys.
Check my avatar its dinafem white widow.