250W 10K on a 30"H tank

[Elite]

Does anyone here use EVC bulb before?

 

[orientalexpress]

i do,evc bulb are great.a little whiter then XM 10k.


lapsan

 

[Elite]

Cool and they are cheaper than XM and reeflux. I think I will keep my IC ballast and get the EVC bulb to test out. Thanks guys

 

[raddogz]

From what I have heard from the presentation on Saturday as Tom has also stated HQI ballasts run more than the stated amount.

An electronic ballast that says 250w is 250w. A HQI ballast that says 250w is really 370w or there abouts. I will continue to stick with my electronic ballast and if I find the need then I will purchase a 400 electronic ballast.

 

[Sparkss]

bulbs on HQI ballasts are thought to burn out quicker and need replacing sooner than those run off of an electronic ballast (exception being a few bulbs actually being designed for HQI ballasts -- no, I don't remember the list of which bulbs those were, sorry ).

 

[raddogz]

The bulbs on HQI in essence are being over-driven so the bulbs useful life is diminished rather quickly, not much more different than over-driven T-5's.

I know the Radiums were meant for so called HQI ballast.

 

[Sparkss]

<a href=showthread.php?s=&postid=10127873#post10127873 target=_blank>Originally posted</a> by raddogz
The bulbs on HQI in essence are being over-driven so the bulbs useful life is diminished rather quickly, not much more different than over-driven T-5's.

Exactly, which is why they typically are thought to require replacing more often than electronically driven bulbs. As you said, anything overrdiven inherently reduces it's lifespan