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This thread was automatically split due to performance issues. You can find the rest of the thread here: http://archive.reefcentral.com/forum...29#post4774729
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J.R. |
#3
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Cheers Shelton. |
#4
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Electric130,
I want to do 3 - 250W DE pendants over my 7' tank. I would also want to supplement with something else I think. Anyway, I have a 24" deep tank and will do some SPS and soft. Is there any reason for me to do an electronic ballast apart from being able to use it elsewhere? I have read a good portion of th previous thread and it sounds like you think the magnetic are the best for DE bulbs. Any opinions on the different pendants out there?
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Jon Easley Tucson, AZ |
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J.R. |
#6
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Sorry. i was unclear. By elsewhere i meant on different lights.
How much less electricity do the electronics use?
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Jon Easley Tucson, AZ |
#7
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Quote:
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J.R. |
#8
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I've just got a couple of 2nd hand DIY units, but they have about 3mtrs of cable between the ballast & the actual light fitting!
I'm sure I read somewhere that ideally you should have no more than a mtr between ballast & light fitting? I'm going to shorten the cables as I need about 1½mtr on each one, should this be ok? If it should only be a mtr what can/might happen with longer cabling? Cheers Shelton. |
#9
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Quote:
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J.R. |
#10
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ballasts are 150w & the cable has N/H05RR-F 3G1 mm2
Cheers Shelton. |
#11
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Quote:
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J.R. |
#12
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Tbh I have no idea..... I don't want a load of spare cable under my tank so do you think I'll be alright shortening them to approx 1½mtrs?
Am I correct in thinking it would cause more of a problem if I wanted to lenghten the distance? Cheers Shelton. |
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J.R. |
#14
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Thanks
Cheers Shelton. |
#15
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hey electric will the m80's make the pulse start bulbs last longer over electronics? I am running m138's with radium 250's and I can't see a visual difference between them and the ice caps I sold to run the m138s. the m58's I tried would not fire the radiums. do you think the m80's would shorten the life of the radiums compared to the m138's?
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This is not a hobby, it's a sickness |
#16
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Quote:
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J.R. |
#17
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nope they will not fire the radium .that is why I got m138 ballasts.
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This is not a hobby, it's a sickness |
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I haven't heard anything about coralvue electronic ballast. I was wondering if this ballast is any good?
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lighting for cube
I have a 30x30" 120g cube tank. Currently have just a 250 HQI DE bulb run by an icecap 250 e ballast. I want to increase my lighting, so trying to thing if going to a 400w bulb is best or just getting another 250hqi DE?
If going to 400w HQI, is this item on ebay any good? I didnt think they made DE 400w bulbs? Any opinions? thanks http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA%3AIT&rd=1 |
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J.R. |
#21
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Re: lighting for cube
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J.R. |
#22
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thanks..
electric130...thanks..that is what i was leaning towards...just thought one bulb of 400w is cheaper to replace than 2 of the 250s....was gonna decide between 2 250s or a 400 with some actinic supplementation...might still have actiniic sup with the 2 250s as well..
G |
#23
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wouldn't 30 x 30 be an easy cover with a 400 and a large diamond reflector? a regular spider reflector is good for like 24 inches at I think 6 inches from the surface? the higher you raise the reflector the more spread you get right? why not use a larger reflector that gives more light? is the tank 30 inches in hieght? if so you need a 400w to penetrate that depth of water anyway. according to what I have read at least.
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This is not a hobby, it's a sickness |
#24
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yup..
it is 30 x 30 x30...so yah, 30 inches high... that is what i thought too, i would need 400w to reach the bottom... what do others think? Will a 250hqi be enough to penetrate to the bottom of my tank? Or maybe I can keep lesser light needing corals at the bottom?
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#25
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It all depends on the corals you plan on keeping. If you want bright and one bulb to cover the whole tank, a 400w SE bulb in a LumenArc III is the only way to go for the spread you are looking for and still able to punch the bottom of your tank with bright light.
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The more I learn, the less I know. |
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