150 watt DE MH lamps compared

[Seth]

I'm not saying that color temperature is a good measure but rather, I think the more "intense" the bulb is, the better colors the corals give (sps). Usually, 10 bulbs are more intense than 20k bulbs.

yes, 20k bulbs give off green and other flouresnce colors but it seems to not be "intense" enough therefore my sps have turned brown. (i'm talking about 150w bulbs)

I think there are 2 kinds of colors for sps.
The first is how the light from the bulbs gives a good color to the coral. This is "surface" color that if you take away the bulb and use another bulb, the colors are gone. Ex. Radiums 20ks give good "surface" colors.

The second is how intense the bulb is. The more intense, the better the color (usually). The coral itself will color up. Even if you put it under different lighting, the color will remain.

This is just my opinion what I have experience so far for sps corals.

 

[comeon22222]

do you guys think that 2 x 150's or a single 250 would have better pentration over the same 2'x2' area? at a depth of say 20-24" deep. What would give me better PAR

 

[traveller7]

do you guys think that 2 x 150's or a single 250 would have better pentration over the same 2'x2' area? at a depth of say 20-24" deep. What would give me better PAR

Single 250 will pentetrate better.

 

[triggerman71]

From the pic aquariumclown posted it looks the opposite,everything seems to stand out.Then again things always are different in person. I wish we had some data on the par these bulbs put out (iwaski 50k and aqu1400) so I could make my choice. I have heared good things on both bulbs, and wanted to get some feedback before I order.

 

[moonpod]

Unsped:
I'm not sure if the BLV 10k 150w is the same as the 250w version. It may actually be much, more similar to if not the same as the Ushio 150w. Traveller will be able to answer that question soon. Also of note the BLV 20k 150w and 250w have no relationship to each other. They look nothing like each other.

Aquariumclown, the Aquaconnect is a German bulb

Seth, the CV 10k is MUCH bluer than a run of the mill 10k. I ran it for like a day and then lost my nerve and sold it.

 

[traveller7]

.....I wish we had some data on the par these bulbs put out (iwaski 50k and aqu1400) so I could make my choice.

What ballast are you using?
What brand of UV shield?

 

[gucer]

Hello everybody!!!!!

Actually upgrading lights for my 100 gal tank.
Got 2 E-ballast and 2 DE 150 W CV 10000K. I will DIY the reflectors.
After reading all this thread not sure is good idea Using the CV, but at least need excellent UV protection from my reflectors shields. Initially was thinking on 3/16" tempered glass for the shield.
Any Ideas?

 

[traveller7]

If you are commited to the DIY then use the $10 Regent brand 500w Halogen for the housing. I don't think they are UV spec'd so head over to the local glass shop.

fwiw: I am using the Regent for some 70DE on Aromat ballasts.

 

[Seth]

I use the regent brand housing with a 150w 20k bulb.
I didn't change the glass because I think the glass included is UV

No harmful effects so far

 

[gucer]

thanks!!!!

 

[traveller7]

I use the regent brand housing with a 150w 20k bulb.
I didn't change the glass because I think the glass included is UV

No harmful effects so far

Great, now I have another UV shield to test :mixed:

 

[comeon22222]

traveler, testing all the iffernt shields would be awesome but finsihing the testing and then adding in supplemental data afterward i think woudl be even better.

 

[traveller7]

traveler, testing all the iffernt shields would be awesome but finsihing the testing and then adding in supplemental data afterward i think woudl be even better.

The shield comment was a joke, but the shields I have tested effected between -5%-18% of PAR.

Testing will reach a posting stage, but with new bulbs, ballasts, etc., it will never be done ;>)

 

[triggerman71]

Traveller

Traveller

I have the 6ft older aqua fixture with the german magnetic balasts. As for the reflectors they are the ones that came with it. The balasts are built into the fixture.

 

[traveller7]

Single 250 will pentetrate better.

Wow, I can spell

 

[traveller7]

Re: Traveller

Re: Traveller

I have the 6ft older aqua fixture with the german magnetic balasts. As for the reflectors they are the ones that came with it. The balasts are built into the fixture.

You've got PM.

 

[kmu]

If you want a good blue bulb to match your spacelight get the AB 150watt 20k bulb...

 

[comeon22222]

which shield only reduced PAR by 5%

 

[bzzbee2]

Im not sure on the whole UV thing. but i was told that if it was tempered, then its shielded. is that true?

 

[traveller7]

which shield only reduced PAR by 5%

Have to wait a bit longer until I get through a wider color spectrum ;>)

I am not sure if performance between the two was related to the K rating, etc.