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Full spectrum LED builds on reefs
Some amazing colors are coming out from Full Spectrum LED builds.  Lots of people are using whats called Ocean Coral White to bring out some insane colors that weren't coming out in corals when just using basic royal blue and cool white ratios.

Some useful information:





Designer DIY Heatsink

Looking for the professional Grade DIY Heatsink for LEDs?  LEDGroupBuy.com now has the new MakersLED Heatsink kit designed to be "Wife Approved".  If you are looking for a sleak, clean designer looking for your DIY LED setup, have a peek at:  http://www.ledgroupbuy.com/makersled-designer-heatsink-kit-professional-grade/


Ocean Coral White Exotic LED for Aquarium Corals and Fish Announced
Ocean Coral White is the easiest way to get the colors you are missing from your LED kit. Combining the correct wavelengths onto one star board, Ocean Coral White produces a white color but excites the fluorescent in fish and corals dramatically.
For more information and spec sheet:  http://www.ledgroupbuy.com/ocean-coral-white/






Ocean Coral White Exotic LED for Aquarium Corals and Fish Announced
Ocean Coral White is the easiest way to get the colors you are missing from your LED kit. Combining the correct wavelengths onto one star board, Ocean Coral White produces a white color but excites the fluorescent in fish and corals dramatically.


For more information and spec sheet:  http://www.ledgroupbuy.com/ocean-coral-white/





Exotic wavelength LEDs Line up - 495nm, 420nm, 660nm
LEDGroupBuy.com Exotic LED line allows you to mix and match our exotic wavelengths to really make your corals "pop" in color

As you probably have heard, True Violets are going to add that extra spice to the color of your tank/corals that is missing.

What you probably haven’t heard is what the new Turquoise 495nm and 660nm red combinations can do for you.

Mixing 660nm Reds + 495 Turquoise + 455nm Royal Blue will give you a very white light but makes your coral colors really come out without darkening your tank.  They will really bring out your oranges, yellows, reds, and dark greens.


 

420nm LEDs - True Violet
If you haven't heard, LEDGroupBuy.com now has stock of the elusive 420nm True Violet LEDs.

True Violet is a spectrum needed for corals to grow properly that was absent since the LEDs start pooping up for the coral market.

The Photosynthetic Action Spectrum shows that at 420nm the activation of chlorophyll A is great.  Most LED system you see as kits only come with the 455nm which is still an essential part of the action spectrum but lack the 420nm that is greatly needed.  Combining the 420nm into your LED kit provides a great deal of light that is needed by corals for growth and overall health.

You can look at it this way, you can't give a human being only a protein diet and expect him to live healthy.  You need to mix in all the food groups to get a natural healthy diet.  This is the same for corals, they need a variety of wavelength to sustain growth and health.

Choosing the right optics
Choosing the right optics for your DIY LED build is very important.  Optics are similar to high end reflectors for T5s.  Sure you can put a T5 bulb in your canopy and it will shine light, but if you put a quality reflector behind it, it will make a world of difference.
When choosing your optics for your LEDs there are a couple things to remember.
1. Most of the light is in the first 50% of the degrees.  For instance, a 60degree optic has most of its light in the first 30 degrees.  It is not linear.
2. Choosing the optic is determined by the width and height of your tank including the height your fixture will be off the top of the tank.


Heatsinks for LED DIY reef lighting
www.LEDGroupBuy.com is now carrying heatsinks for DIY LED reef lighting.  There is a wide selection of extruded aluminium heatsinks.

In a DIY LED lighting project, one thing that is very important in the build is cooling the LEDs.  LEDs can last many years at 12hrs a day (10+) but their life expectancy has strong connection to the temperature they run at.  The cooler they run, the longer they will last.  You can keep your LEDs cool by using aluminium heatsinks to thermally conduct the heat from the LED star to the heatsink it self.  The heatsink can also be cooled itself by providing fans by either blowing air down into the heatsink or sucking hot air away from the heatsink depending on the ambient temperature of the room.

To pickup some heatsinks, you can check them out here
To pickup some fans, check them out here

Jan 3rd Group Buy shipment delayed a couple days
The January 3rd group buy shipment was delayed a couple days due to some ordering "hiccups".  I was expecting to have the shipment in my hands by yesterday but because of the delay it seems I wont touch it until about Tuesday-Wednesday (its currently in express transit to me).  I will have everyone's shipment out same day I receive the LEDs with tracking numbers.

Sorry for any inconveniences this has caused.  You can always emails us at sales@ledgroupbuy.com if you have any questions or comments.


Nano-Reef.com sponsorship
We have decided to help out the reef community a bit and sponsor www.Nano-Reef.com. We like to thank Nano-Reef for accepting us as a sponsor.

I encourage everyone to check out Nano Reef's DIY forum for great information on LED builds. There is several great members there that help others with build questions.

If you like what we sell, the prices we give, and the service we provide, head over to the LEDGroupBuy Nano Reef forum and be one of the first to give us feedback!


Accessories
I've had several people ask if I'm able to source some accessories for discounted prices.  So the first set of accessories is up which includes:

Thermal Grease $1.59 per 1g
Thermal Adhesive (Arctic Alumina) $6.99 per 5g
22AWG Wire $0.15 per foot 
OEM Digital Multimeter $8.88

I'm still working on the meanwell drivers but it seems no one can get them to me until late February.

For all that are interested I'm still working on sourcing
9V regulated wall wart
Soldering Iron
Heatsinks
Fans

Jan 3rd 2011 LED Group Buy is now closed
Thanks for everyone who ordered for Jan 3rd 2011 Group Buy, it is now closed.  Over 1000 pieces have been ordered.  We expect to be shipping the packages next week.

All orders are now being taken for the Jan 23rd 2011 Group Buy.  Expect to see some new items up within the next week.

Next LED group buy date announced - Jan 23rd 2011
The next group buy date for LEDs is now set for Jan 23rd 2011.  On Jan 3rd 2011 11:59PM PST I will be closing the current group buy and all orders taken after 11:59PM PST will be added to the Jan 23rd group buy.

If you have any questions, comments or would like to see additional items on the Jan 23rd group buy, please don't hesitate to contact us at sales@ledgroupbuy.com

Power Supplies
I've been asked by several people if I'm going to be doing group buys on power supplies. I have been in contact with Meanwell and I can get certain power supplies in bulk, mainly the ELN-60-48 series which handle 12 LEDs each at a price of about $26.42ea.

The only issue with this is that I would have to increase the shipping on orders with power supplies by about $5-$6 because I would need to use bigger boxes to ship (right now I'm using medium size boxes).

So post your comments in the comments section of this post and let me know if you would like to see cheap prices on power supplies. If they go up, they will be for the Jan 23rd group buy.


New colors added by popular demand
Some people have been asking for more colors such as Blue, Neutral White and Warm White so I've gotten the manufacturer to provide us with those colors at a discounted price!

Here is what we got now:
XP-E Blue price $4.08
XP-G Neutral White price $4.87
XP-G Warm White price $4.89

Take note that the white are not the XR or XP versions others are selling at higher price.  These are the newest brightest XP-G versions.

If you want more colors, let me know and I'll see what I can do.  Just shoot us an email at sales@ledgroupbuy.com with the color (and/or kit number) and what they are used for.

50% off shipping when you help us advertise!
To get the word out on LEDGroupBuy.com to other aquarium hobbyist that need LED lighting, we have decided to cover half the shipping cost if you help us spread the word!

Three simple steps to get 50% off shipping:
1. Tell others on your local board where you got your LEDs
2. Send a link to your post to shipping@ledgroupbuy.com
3. Order LEDs for the next group buy with the same email address and put the link again in the comments section

Thats it! Once we verify the link, you will get refunded half of the shipping cost! (Even on international shipping)

This offer ends Jan 10th 2011


What can you use these LEDs for?
I've gotten a few emails on questions on what you can use these LEDs for. I've created a FAQ page to answer some of the questions I'm getting.

I consider myself knowledgeable enough to answer any questions you have on lighting a reef aquarium with LEDs but I can only speculate on freshwater setups. In most cases for a reef aquarium with SPS you will be using 1 LED per 10-15in of surface area. XP-G to XP-E ratio should be close to 40:60 to get a 14k look.

In a freshwater aquarium I would think you would not need the XP-E Royal blue but rather just the XP-G Cool White. If someone would like to comment on this and give others some info on lighting a freshwater setup, please feel free.

What you need to know about the colors is that the Cool White create growth and the Royal Blue make the colors "pop".


CREE XM-L Priced
I was finally able to get a price for the CREE XM-L from the manufacturer.

Current price on the CREE XM-L star mounted is $6.80

Group buy will be open for this LED until JAN 23rd 2011


XP-E Blue LEDs added to Jan 3rd Group Buy
Due to popular demand, I've added the XP-E Blue to the Jan 3rd group buy. Current price is $4.08 but if enough people want them and volume goes up (usually only about 100 get sold) I can try to negotiate a better deal and give people refunds. These are the TOP blue LEDs XPEBLU-L1-0000-00W01



Price reduced on XP-G and XP-E
I was able to negotiate a lower price with the volume we are purchasing for Jan 3rd so the price has been reduced!  Everyone that has ordered already has been refunded the difference.  If there are any errors with your order please contact support@ledgroupbuy.com

Current Price:
XP-G Cool white price $5.07
XP-E Royal Blue price $3.19

XP-G and XP-E group buy is on until Jan 3rd
Due to popular demand we have the XP-G cool white and XP-E Royal Blue back on for the group buy. These are the top colors right now for aquarium builds.


Get them while they are hot!!!


[Price $6.80] CREE XLamp XM-L LED STAR mounted - COOL WHITE
CREE XM-L COOL WHITE

Remember you use to think CREE XP-G were good? Well these are 20% more efficient.
Group buy will end on Jan 23 2011 @ 12:00PM PST



Some info on the LED:

Maximum drive current: 3000 mA
Low thermal resistance: 2.5°C/W
Viewing angle: 125°
Available in cool white
3000mA (2 times XP-G!!!)
CCT Range 5,000K-8,300K
260lm flux @ 700ma! minimum!

Version: XMLAWT-00-0000-0000T505

SPEC: http://www.cree.com/products/pdf/XLampXM-L.pdf

There is a $12 flat charge to anywhere in the US for anything under $1000

As with all group buys on this site here some info you need to know:
Once the group buy is over, a order will be placed to the manufacturer with the total amount of LEDs we as a "group" want to buy. I receive them a few days after the group buy closes and I start shipping them out. So expect up to 7 days after the group buy finish to receive your LEDs.

Remember to tell your friends so they can also save $.
If you have any questions or comments, just post them! Or if you want to see a certain LED for the next group buy, comment away and ill see if we can get them.

STATUS: OPEN
XM-L Price $6.80 Buy Now


CREE 3W XP-G Cool White and XP-E Royal Blue
3W XP-G Cool White CREE LED star mounted



Some info on the LED:
Maximum drive current: 1500 mA
Low thermal resistance: 6°C/W
Viewing angle: 125°
Available in Cool White
139lm flux @ 350ma

Version: XPGWHT-L1-0000-00H5

SPEC: http://www.cree.com/products/pdf/xlampxp-g.pdf

STATUS: OPEN

XP-G Price $5.07 Buy Now



3W XP-E Royal Blue CREE LED star mounted

Some info on the LED:
Maximum drive current: 1000 mA
Low thermal resistance: 9°C/W
Viewing angle: 115-130°
Available in Royal Blue
500lm flux @ 350ma

Version: XPEROY-L1-0000-00B01

SPEC: http://www.cree.com/products/pdf/XLampXP-E.pdf

STATUS: OPEN

XP-E Price $3.19 Buy Now




Optics for CREE XP Series 40degrees

STATUS: OPEN

CREE XP* 40Degree Optic Price $1.49 Buy Now



Optics for CREE XP Series 60degrees

STATUS: OPEN

CREE XP* 60Degree Optic Price $1.49 Buy Now




There is a $12 flat charge to anywhere in the US for anything under $1000

As with all group buys on this site here some info you need to know:
Once the group buy is over, a order will be placed to the manufacturer with the total amount of LEDs we as a "group" want to buy. I receive them a few days after the group buy closes and I start shipping them out. So expect up to 7 days after the group buy finish to receive your LEDs.

Remember to tell your friends so they can also save $.
If you have any questions or comments, just post them! Or if you want to see a certain LED for the next group buy, comment away and ill see if we can get them.

STATUS: OPEN - Closes Jan 3rd

Why LED Group buy?
I've made this site for one major reason.

To bring LEDs to the general public at an affordable price!! No more $8+ LEDs.

But why would I want you to use LEDs?

Mainly because they are ridiculously more energy efficient than all other lighting. You not only save the planet but you also save money in energy bills.  You also wont need to change an LED for 10 years.

All of the LEDs ill be offering on group buys are very efficient high output that can be used to light up rooms, grow plants, and aquariums. These are not your cheap china made LEDs, these are high end CREE LEDs. Be warned though, do not just plug these LEDs in, you need heatsinks to keep them cool otherwise because of how much light they can emit, they will get hot and go boom!

So how does it work?
I have contacts in the industry with manufacturers that will give large quantity prices. I leverage these contacts and ask them to give us $$$$ off the already discounted prices if we buy in bulk.  I need to order thousands of LEDs at a time for them to pump them out of there manufacturing houses. The idea is that if we gather people around the internet, we can make one mass order and get everyone LEDs at very very very low prices.

Do I make money?
Im not here to make money but I do make a small % to cover the cost of pay pal charges, and software charges. Im really just gathering the power of the internet to acquire a ridiculously good price on LEDs so we can all reduce our costs and save the environment.  So you can say I save money with your help.

You have questions?  Or want to know if they work for your application? Just ask them on the comments section and ill do my best to give you good advice.