Led light good deal?
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Old 11-01-2013, 06:02 AM   #1
FishermanGoji
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Led light good deal?


Hello all
Long time lurker here
I just wanted to thank everyone for all the info ive picked up, but i had a question about this light on [Ebay Link Removed] LED light talk is pretty confusing to me, and i was wondering if anyone could tell me if this is what i would need for a 20g long planted for low - med light. i have diy co2 and ferts. i will be setting this tnak up soon. i like the price, but will it be enough light? thanks in advance everyone!

[Ebay Link Removed]
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Old 11-01-2013, 06:42 AM   #2
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hmm i just noticed the link was removed
it looks like it uses 72 10000k white leds, and it has 6 blue 460nm LEDs for night time. It uses 7 watts - 400 lumens. let me know if theres any other info you guys need
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Old 11-01-2013, 07:59 AM   #3
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7 watts sounds really low and 10k + blue could get a bit to cold imho.
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Old 11-01-2013, 07:50 PM   #4
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Thanks for the quick reply!
actually now that i think about it, isnt led effectiveness determined by the lumens? and not the watts? Could someone maybe point me in the right direction for a led setup that would be sufficient if this one isnt?
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Old 11-03-2013, 10:50 PM   #5
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You are correct. Every light should me measured in output, not input.

But regarding 7W... Expensive and highly efficient cree leds dont put out very much light from 7w, so a cheap fixture with cheaper leds is probobly very low light output unless its for a small nano.
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Old 11-03-2013, 11:12 PM   #6
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What brand is the fixture? Or what is it called in the description on ebay so we can look it up.
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Old 11-03-2013, 11:58 PM   #7
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Ahh thanks for the input matsnork
fifty, i couldnt find a brand, but if you search for aquarium led light, and put in $34-36 in the filter it should show up. it should be the first one if you have your results sorted from lowest to highest. thanks everyone for your time!
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Old 11-04-2013, 06:50 AM   #8
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Best bang for the buck IŽve found on ebay is an e27 par38 bulb 18w ( they claim 36w but in reality 1x18w not 2x18w). IŽve got two of those over my 60p. Just search for it and youŽll find plenty, they cost about 30usd a piece.
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Old 11-04-2013, 04:07 PM   #9
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Quote:
Originally Posted by Matsnork View Post
Best bang for the buck IŽve found on ebay is an e27 par38 bulb 18w ( they claim 36w but in reality 1x18w not 2x18w). IŽve got two of those over my 60p. Just search for it and youŽll find plenty, they cost about 30usd a piece.
you get em from Hong Kong or China ?
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Old 11-04-2013, 10:33 PM   #10
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Dont remember. One of those two But they are both China now days no?

Check out my 60p thread for info on the lights.

edit: found the seller. Located in HK fyi.

edit2: This is my temporary light hanger: http://i49.photobucket.com/albums/f2...ps4bb4d6f2.jpg

This is the thread: http://www.plantedtank.net/forums/sh...306&highlight=

Last edited by Matsnork; 11-04-2013 at 10:44 PM.. Reason: edit
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Old 11-06-2013, 03:20 AM   #11
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Quote:
Thanks for the quick reply!
actually now that i think about it, isnt led effectiveness determined by the lumens? and not the watts? Could someone maybe point me in the right direction for a led setup that would be sufficient if this one isnt?
Refer to this for a more thorough introduction to LED lighting
http://www.plantedtank.net/forums/sh...d.php?t=184368
http://www.plantedtank.net/forums/sh...d.php?t=160396
Typically most people in the aquarium hobby refer to the amount of PAR a given light will emit, in this case a diode. This is essentially the light intensity at varying distances away from your tank.
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Old 11-07-2013, 05:52 AM   #12
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thanks everyone for the help! ive decided to go with the e27 par38 bulbs, and probably upgrade to something a little later down the road. Nice tank btw matsnork
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Old 11-07-2013, 06:33 AM   #13
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Hope you get them set up all right, post some pics when you do. Make sure to not install with anything plugged in. Chinese electricity...

I can also tell you that I got the plants to put out oxygen pearl strings yesterday for the first time under the e27 lights, so they cant be too bad.
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