Discussion in 'Anything DIY Related' started by gaboon, 12 Jun 2009.
Nice man thanks alot , will be doing a few mods this weekend
That is awesome, I've been looking for something like this, what a neat setup too. The PAR values at the end was what really impressed me, from only 48 LEDs. Comparable to some T5 and MH readings I've seen.
Wow that cool, and probably a lot less heat than MH.
and a longer lifespan!
thanx for the info
I always wondered wether that could be done and there's the proof. If Eskom gets their way with the price hike that may just force some of our hands in that direction
Wow, something to really look into.
One of my mate specialises in LED setups but I am talking up to commercial level like the cape town convention center even!
I have sent him the above link and want to see how much he can make up something like this, maybe he could build up units on request.
Just out of interest his dad had a 2m Marine Tank for almost 18 years starting back in 1990 so he also has a marine 'growing-up'.
Will keep u posted!
mickey that will be awesome
Cool Mickey! Looking forward to seeing what you mate can come up with!
I knew it - one day it will come true!!!
Great link and thanks.
Gotta try this---------- someone???
Wrote to my friend and here is the reply out of interest:
Going with high power LEDs in this situation in not necessarily the cheapest.
If, all you want, is to illuminate your fish tank with blue and white LED light at this intensity. And also have a nice aluminium frame which fits around the top of your fish tank. I would suggest going with Linear Light Lines (similar to what i suggested last time), built into an aluminium frame.
In this case, you/we could build an aluminium frame, with 3 lines of blue, and 3 lines of white alternating & parallel to each other. You would also need to go with the outdoor resin coated product.
The costs will be as follows :
3 x 0.9m Blue LED Lines (waterproof and fitted in aluminium channel) @ R400 = R1200
3 x 0.9m White LED Lines (waterproof and fitted in aluminium channel) @ R400 = R1200
1 x Aluminium Frame @ R250
1 x 100W Power Supply @ R380
Total = R3030 (ex VAT)
Lumen output : 2160lm
If you wanted to use high power LEDs (similar to the link) :
For a 0.9m tank, which is 75% the size.
18 Blue Platinum Dragons @ R45 R810
18 White Platinum Dragons @ R55 R990
36 Star Boards @ R7.50 R270
6 x 1000mA Current Drivers @ R145 R870
150W Power Supply @ R450 R450
1 Aluminium Heatsink Frame @ R800 R800
2 Fans @ R120 R240
Assembly (8 hours) @ R125 R1000 (optional)
Lumen output : 2340lm
Hope you are well!!..This fish tank idea is grabbing me too!
Any of you guys think the first option will work??
Either way though , with the cost of bulbs.... and possibly the elimination of having to buy a chiller this looks like it could be very worth it!
Well those prices are not completely out of line with what some lighting pendants go for. All we need is for someone to go for it so we can see how it looks/works
This has really got me thinking. So I found some info on the net and we can get this stuff locally. Do you think it will work?
Weatherproof Flex LED Ribbon IP65
It comes in 5m lengths and can be cut every 3 leds.
There are 60 LEDS per meter giving a LED every 16.7mm.
You can get it in warm white, normal white and blue (There are other colours that we wont need)
It produces 188 Lumins per meter.
It comes on a tape which is self adhesive and flexible.
The only thing is it costs about R1800 for the 5 meters.
The power supply needed for 5 meters costs R450.
It says they only heat up about +6 degrees from ambient so I dont think cooling will be an issue.
Here's a pic of what they look like:
I checked those lights out, and even went to the company in Paarden Eiland to check what this company has, and although they are pretty cool, they have a very low wattage. Therefore not good enough for a marine tank. The lumens amount per led was also very low. There are however high powered leds available from Communica which are already mounted on star boards (made by Seoul Semiconducters, these are 4W high powered leds, R65 per led but R59 per led for bulk orders). check out the thread LEDs for Lighting (under the Lighting heading).
Personally I wouldn't spend a few k on something as an experiment because it's virtually impossible to find wavelength data on LEDs nevermind a PAR reading. Of course if someone did build it then it could be measured but the things aren't designed for reefs so there'd be no reason for them to be suitable.
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