I WANT! LED light by Ecoxotic

[JetJumper]

and then if we want to get really fancy.  We get one of these.  Program a script to power the lights up in a certain order and by simulating the sun rising / setting by dimming the LED's as they come on and off.

http://www.arduino.cc/

This is my goal over all is to make a light and have it controlled by this.  I would also have this controlling my pumps / heaters / etc with probes and relays.

[ciaus]

That card is sold in Montreal at the robotshop...

[KrazieCanuck]

Let me know if your doing the group buy on LEDs, I may be interested.

RapidLED.com sells the 107 lumen Cool White Cree LEDs and the Royal Blue Crees for $6.79 each.  They don't list a "bulk buy" price but it's still better then the bulk buys at LEDsupply.com.

Also, you would probably be more interested in the Mean Well LED drivers since they can run a string of 12 3w LEDs each instead of the buckpucks that run 6.  You can get dimmable ones also for extra cost, but would allow for you to fine tune your LED lighting to the color and intensity that you like.

Anyways, let me know if your going to be looking into a group buy and I may join in.  I've been reading a LOT on these projects and from what I have seen a set of 24 Cool Whites and 24 Royal Blues strung together provides the same if not more PAR then a 400w Metal Halide.

You'll also need to consider purchasing a heatsink to mount them on for cooling and possibly reflectors.  I was considering the 80 degree reflectors for a light fixtures that is approx. 1.5 feet above the water.

Anyways...just thoughts and my two cents...

[JetJumper]

If I do purchase LED's I am most likely going to go with this kit..

http://www.rapidled.com/servlet/the-28/24-Premium-LED-DIY/Detail


If there is enough interest, maybe we can get a better price.


Rapid LED Items
Qty   SKU   Description   Price   Total
1   24-KIT-Q5-Dimmable   24 Premium LED DIY Kit with Dimmable Drivers   $279.00   $279.00
Sub-Total   $279.00
Shipping: USPS Priority Mail with Insurance   $30.00
Sales Tax   $0.00
Total Due:   $309.00

Thats with Shipping to Ottawa area.

[Rybren]

Tagging along.

I've been contemplating an LED build for my 75G.  I was thinking of 48 Cree 3W XGE with a 50-50 mix of white and royal blue.

There are a couple of threads on RC that detail how to build a CC driver, thus avoiding the use of buckpucks or meanwells.  I also like the idea of using the arduino controller.

For heatsinks, there are folks out there using aluminum U channel vice purchasing heatsinks from heatsink USA.

Unfortunately, my soldering skills and electrical knowledge = 0 and I'm really hesitant to spend $600+ on something that I could easily trash.

A group buy and build might be an option - if those with the skills and knowledge would be willing to help out.

I believe that there's a user here on OVAS (I can't remember his username) who has already built a 48 LED fixture. Maybe he'd be willing to chime in.

[JetJumper]

How about this Bad Boy.

http://cgi.ebay.com/50W-White-High-Power-3500LM-LED-Lamp-Light-AC-Driver_W0QQitemZ160411026253QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item25593e034d

[Stussi613]

How about this Bad Boy.

That's exactly what I'm looking for...I just sent a question to that seller asking for the colour temperature of the bulb as well as what kind of discount breaks they offer.  If anybody else if interested in this unit I'll post back the response when I get it.

[RossW]

Excuse my ignorance but what would this equate to in PAR, ideally relative to T5HO or Halide.  How may would I need to light a 120g, 4x2x2?

If I do purchase LED's I am most likely going to go with this kit..

http://www.rapidled.com/servlet/the-28/24-Premium-LED-DIY/Detail


If there is enough interest, maybe we can get a better price.


Rapid LED Items
Qty   SKU   Description   Price   Total
1   24-KIT-Q5-Dimmable   24 Premium LED DIY Kit with Dimmable Drivers   $279.00   $279.00
Sub-Total   $279.00
Shipping: USPS Priority Mail with Insurance   $30.00
Sales Tax   $0.00
Total Due:   $309.00

Thats with Shipping to Ottawa area.

[JetJumper]

Excuse my ignorance but what would this equate to in PAR, ideally relative to T5HO or Halide.  How may would I need to light a 120g, 4x2x2?

Have a look here for the answers you are looking for.

http://www.reefcentral.com/forums/showthread.php?s=&threadid=1587273

[RossW]

FYI, I have been in contact w/ RapidLED and am enquiring about a group buy rate.  When I hear an answer I will let you know and hopefully create a new post in the Group Buy forum.

[groan]

That's exactly what I'm looking for...I just sent a question to that seller asking for the colour temperature of the bulb as well as what kind of discount breaks they offer.  If anybody else if interested in this unit I'll post back the response when I get it.

i'm interested in this option.
please post what you hear.

[groan]

What about this?
http://cgi.ebay.com/225-Blue-WHITE-LED-Aquarium-Plant-Grow-Light-Panel_W0QQitemZ220570917461QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item335b0d1a55#ht_3416wt_1002
of course I'd want to know just how bright it is. color is 6-7000K for the whites.

Any thoughts? seems very inexpensive.
for the price it's almost worth just giving it a go. it's 1 foot square. may be good for over a sump if it's not bright enough for the main tank.
I guess it would need a housing and fans.

[JetJumper]

It uses the same LED's that I used in my DIY LED Module.

I just have Blue and UV specifically, no white LEDs.  I was going to use mine as a actinic suppliment instead of an entire light for the tank.





For a sump it would be fine I would say.

[groan]

i was just coming back to say that.
this one from the same seller seems more like the main light.
http://cgi.ebay.com/Aquarium-Coral-Reef-Tank-High-Power-LED-Grow-Light-120W_W0QQitemZ390167901428QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item5ad7d1b4f4#ht_3559wt_1002
not sure how many you would need for a 48 inch tank.
120w equiv.
how bright is 182 par?

[JetJumper]

These ones from this EBAY seller are more or less "cheap quality Chinese knock offs"

If you have a tank with nice corals in it, I wouldn't risk going with this and having the chance of things dying off   They would be fine probably for Aquatic Plants, but Corals.. hmm.. :S 

[Stussi613]

what would this equate to in PAR

PAR stands for parabolic aluminized reflector and relates more to spotlight type lamps than fluorescent. Typical T5HO is around 5000 lumens.

[Stussi613]

i'm interested in this option.
please post what you hear.

$550 USD for 10 pieces shipping included...

[johnrt]

"PAR stands for parabolic aluminized reflector and relates more to spotlight type lamps than fluorescent. Typical T5HO is around 5000 lumens."

I understood that PAR, in this context, was Photosyntheticly Active Radiation, and was the light energy from a light source that is inside the action spectrum of plants, mostly deep blue and red, as apposed to lumin which is the light sensitivity of the human eye, which is centred on the green part of the spectrum..

[RossW]

Group buy initiated for Rapid LED over here:
http://ovas.ca/index.php?topic=43134.new

[JetJumper]

"PAR stands for parabolic aluminized reflector and relates more to spotlight type lamps than fluorescent. Typical T5HO is around 5000 lumens."

I understood that PAR, in this context, was Photosyntheticly Active Radiation, and was the light energy from a light source that is inside the action spectrum of plants, mostly deep blue and red, as apposed to lumin which is the light sensitivity of the human eye, which is centred on the green part of the spectrum..

You are correct.

http://en.wikipedia.org/wiki/Photosynthetically_active_radiation