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01-03-2005, 04:18 PM | #1 |
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Seeking lighting advice
Which would you buy if both are similarly priced
1. Brand new Maqnum II 55w. 8000K temp. 2. 2nd-hand Jebo 2x18w + 2x18w (Total 72w). 10000K temp. Last edited by kniveswood; 01-03-2005 at 04:32 PM. |
01-03-2005, 04:20 PM | #2 | |
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01-03-2005, 04:31 PM | #3 | |
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01-03-2005, 04:33 PM | #4 | |
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How many watt do you require, i assume you are having a 2ft tank. 3wpg should use 72w. But if you do need 72w & the jebo is not using eballast & the tubes are old I suggest that you get another set. However if you are not going to have light demanding plant go for the Magnum II. |
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01-03-2005, 04:42 PM | #5 | |
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Yes im getting a 2ft tank. From my calculations, 60cm x 30cm x 45cm is only 81 litres leh, which is only about 18g right? So isnt 55w already 3wpg? |
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01-03-2005, 04:55 PM | #6 | |
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01-03-2005, 07:14 PM | #7 | |
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Actually 10000K also seems to work on my plants, have been using them for a while and the effect is about the same. Think intensity is more impt than light temp. Cheers, Lawrance |
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01-03-2005, 07:32 PM | #8 |
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The 6500K tubes have a more yellowish tint while those 10,000K tubes
have a more bluish tint. It seems like its a more visual effect then anything else No doubt intensity is important, colour temperature is important too. So its important to check the colour temperature of the tubes. Those pink or red tubes are out Having high colour temperatures will never compensate for lack of light intensity For 2 tubes of the same wattage, the reach and penetration of a 6500K and a 8000K is the same. However if u compare the 2 tubes with a tube of 10,000K but of a lower wattage, the tubes of 6500K and 8000K are still better. The reason is because of the higher light intensity due to a higher wattage Increasing the duration of lights will also NEVER compensate lack of light intensity and using tubes with the wrong colour temperature for a planted tank On the hindsight, do check the tubes and make sure the colour temperature is above 6000K for a planted tank Last edited by |ceberg; 01-03-2005 at 07:39 PM. |
01-03-2005, 07:58 PM | #9 | |
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Is magnum II 55 w comes with the standard length 55 w PL ? Else very troublesome to get replacement bulbs.... As the standard 55 w PL light bulb is pretty long, almost 2 ft.
If it is standard, I go for magnum. Quote:
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01-03-2005, 08:41 PM | #10 | |
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