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未閱讀文章發表於 : 2006-04-15 16:02 
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註冊時間: 2005-10-28 12:09
文章: 190
來自: 墨爾本
Hi all big brother,

If both energy saving & florescent light has same watt & k figures, will they, in theory, provide the same amount/color of light?

I'm now using a "clip-on" 9W 6400k light for my 30cm(L) x 25cm(H) tank, if I change it to a Philip energy saving light bulb with 18w 7500k, will that be much better for my plant?

Also do u think I may get algae boom with a stronger light?

Thanks!!


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未閱讀文章發表於 : 2006-04-15 18:12 
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註冊時間: 2004-02-29 21:51
文章: 5396
來自: 香港
same watt, but the Lumin may not be same, so may not provide the same amount of light.

same K, same clour

the below link is for your reference
http://www.aquariumfarm.com/phpBB2/view ... 57&start=0

i think 18W is much better, because 9 w may be too weak

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未閱讀文章發表於 : 2006-04-16 01:47 
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註冊時間: 2004-08-26 00:26
文章: 7732
來自: 馬鞍山
I don't think the 18W Energy Saving Bulb will offer a lot of advantge unless you have a special mount and reflector that can place the bulb horizontally and reflect all the light towards the tanks. Without a reflector, most of the light output by the energy saving bulb will not go into the aquarium at all. In addition, the Energy Saving Bulb is similar to a single poin source of light, this might not cover the aquarium evenly, causing darker corner as a result of that.

I suggest you go for a 18W PL product if possible, this should fit into your 30cm aquarium nicely.

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viewtopic.php?f=33&t=67319

我的 60 吋 Community Tank 紀錄
viewtopic.php?f=5&t=66429

JazZ Cafe - 水族主題的蒲點
viewtopic.php?f=9&t=56663


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未閱讀文章發表於 : 2006-04-18 07:36 
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註冊時間: 2005-10-28 12:09
文章: 190
來自: 墨爾本
Hi all big brothers,

Thanks 15 hing the link is very useful!

Yes you're right Andy hing, I think I need to find a shield to reflex the light back to the tank, otherwise even 100w may still useless. I may use 2 lower watt bulb to reduce dark corners too....however I still have few questions.

1)For a small plant tank like mine, will 7400k and 6400k make much different?
2)If I use Energy saving bulb, which watt figure I should look at? i.e. On the box of energy Saving Bulb it said 18w = 100w (roughly)
3)After reading the artical, now I know I also need to take Lux into account, then how many lux is enought for my tank?

Thanks !


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