Aquarium light

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Rich
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Aquarium light

Postby Rich » Sat May 05, 2012 3:38 pm

Don't know if this picture will show but here goes :D


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Rich
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Re: Aquarium light

Postby Rich » Sat May 05, 2012 3:46 pm

The blue is just starting to come on in this pic



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The LEDs are taking 18ma each during the day.


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You can see the LDRs here.


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Getting some fish in a week or 2


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Rich
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Re: Aquarium light

Postby Rich » Sun May 20, 2012 9:17 pm

The finished product at night, got a couple of Minnows in there if you look hard enough. :shock:




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bigal344
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Re: Aquarium light

Postby bigal344 » Mon May 21, 2012 8:50 am

That is a great project! I'm just looking into creating some lights for my tanks as I'm fed up with the standard bulbs and the prices that they command!!
I would love to have a moonlight setting for them , and never considered using LDR's.
I've just gotta figure out how many LED's to use as our tanks are fairly large!!
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Today I have been mostly Nyaning.

Rich
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Re: Aquarium light

Postby Rich » Mon May 21, 2012 8:54 pm

Yes use plenty white LEDs the wide angle ones aren't very bright during the day. BC337 transistor might be better for more LEDs too



These are the LDRs I used:

http://item.mobileweb.ebay.co.uk/viewit ... 9565030922

I suppose they are fairly standard things but the resistor values will be spot on if you use these.


I'll look foreward to the pics :)

Rich

bigal344
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Re: Aquarium light

Postby bigal344 » Mon May 21, 2012 11:37 pm

Cool, thanks for the link, nice and cheap as well!
Was going to ask which white LED's you used but then i noticed that your drawing clearly says warm white LED's!
I've seen some very good instructables on, well instructables!! That use sheets of perspex to house banks of LED's for illumination, so i think that i may go down this route, but pinching a few ideas from yourself if you don't mind!! ;)
I think I'll start with one of our smaller tanks and see how that goes before I move onto the bigger ones!
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Today I have been mostly Nyaning.

bigal344
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Re: Aquarium light

Postby bigal344 » Mon May 28, 2012 2:58 pm

Sorry, may be a dumb question, but what are these?

Image Image
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Today I have been mostly Nyaning.

The Crusher
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Re: Aquarium light

Postby The Crusher » Mon May 28, 2012 4:13 pm

bigal344 wroteColonSorry, may be a dumb question, but what are these?

Image Image


I think it is the LDR's he is using.

EDIT: It was not. What is that? :P
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Rich
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Re: Aquarium light

Postby Rich » Mon May 28, 2012 10:55 pm

Preset variable resistors, sometimes known as trimmers. Soldered onto a pcb and adjusted with a wee screwdriver. Loads on eBay, cheap as chips :)

bigal344
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Re: Aquarium light

Postby bigal344 » Tue May 29, 2012 9:21 am

Aha! Knew they were a resistor of some description.
Haven't got any of them , so I've just ordered some from ebay.
Thank you very much! :D
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Today I have been mostly Nyaning.


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