NEW Lumatek Bulbs... Anyone used these...Post what you think of them

how bout a link

i use 600w lumatek bulbs. seems like they last. had the same bulbs for over a year and they're still bright as shit. thinking of changing them soon though just cause hey say to. can always keep the old ones for backups for my friends and i. i also use 240v dual 600w ballasts in flower. you need a 240v outlet and timer though. also for veg i use lumatek 120v. i turn it down to 300w usually to save on power. they were a bit expensive but digitals are cheaper to run over time and no problems yet.