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Discussion Starter · #1 · (Edited)
i have a interpet 60l fishbox tank and it requires a edison screw in bulb - my current bulb still works as it is only a few month old, but all the plants i get are turning brown, i can get the interpet replacement bulbs but there only 15watt.
this is the original bulb http://www.tynwaldpetcentre.com/store/product/10079/Interpet-Brightday-White-Bulb-15-Watt/
would these bulbs work instead as there a higher wattage? would it help at all? or would they be worse because they are not actually made for aquariums?

http://www.amazon.co.uk/Daylight-En...3?s=electronics&ie=UTF8&qid=1317337385&sr=1-3

i have also found this bulb

http://www.amazon.co.uk/Ecozone-Bio..._1_2?s=lighting&ie=UTF8&qid=1317335373&sr=1-2

thanks for any help
 

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Discussion Starter · #4 ·
hi, the guy at the pet store said they would be no good, as they would in actual fact be weaker, than the 15watt tank bulb, is this true - i dont see how it could be, unless he thinks im talking about a standard energy saving bulb.. or he just wants to make some pennies off me.

the tank bulb is compact florescent and so are the ones i found

both the bulbs i found are daylight with color temp at around 6400 and a CRI above 85

but they are double the watts of the supplied tank bulb

in theory the new bulbs should be better yes?


i just hope they will fit under the water proof plastic covers
 

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He's wrong. As long as the ACTUAL wattage is higher, you're fine. When you use the "comparable" wattage like X watts equals X watts of standard incandescent, then you get messy.

As long as actual consumption is 30 watts, then yes, it would be double the other. You get a considerable amount of light loss due to restrike with these type of bulbs, but that isn't relevant as you were getting that with the original bulb.
 
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