Superbrite Blue Leds Group Buy

[clamm]

500TB4D



Blue LED - Super Bright (30 Deg.): 4,500 mcd
T1 3/4 water clear 5mm super blue. Color: InGaN blue (470 nm). Intensity: 4.5 cd (typical). Viewing angles: 30 Deg. Solder leads without stand-off. For optimal colorization and intensity (4.5 cd), forward voltage of 3.3V is recommended.

Click here for datasheets and technical specifications.

To order samples(15 pieces $21.30) click here.

Pricing Information: 30-99 pcs : $1.42 USD
100-199 pcs : $1.05 USD
200-299 pcs : $0.97 USD
300-999 pcs : $0.84 USD
1000+ pcs : $0.67 USD

+ SHIPPING!

SHIPPING WILL BE DIVIDED BY THE NUMBER OF PEOPLE ORDERING.


SO LET ME KNOW WHAT YOU WANT. I TAKE PAYPAY BUT YOU HAVE TO ADD 3% TO COVER FEES...ALSO CAN SHIP FOR COST OF A FIRST CLASS STAMP OR YOU CAN PICKUP FROM ME IN CHELMSFORD/PEPPERELL. CAN ALSO PICK UP AT DEC MEETING. PROBABLY WONT HAVE THEM IN TIME FOR THE NOV MEETING.

VIEW THIS WEBSITE FOR INFO ON HOW TO WIRE THEM.

http://www.kaotica.com/frag/diy/moonlight/

PLEASE RESPOND ON THE FORUMN AND I WILL SEND A CONFIRMATION PM WITH YOUR REQUEST.

THANKS GUYS!

[NateHanson]

Looks like you're a little EXCITED about this group buy! ;)

Can you also order the matching resistors from this site? Also, do they have 100 degree LEDs instead of these 30 degree ones? Might create less spotlighting.

[Daragon]

You can buy the resisitors at Radio Shack for .99

[clamm]

radio shack for resistors, dont have them...i plan to use pots so that I can very the resistance and increase and decrease the intensity to what I like w/o overdriving the bulb...remember they recommend 3.3V to drive the bulb. Also, recommend getting a few extra bulbs because you can damage by improper soldering.

and yes, im excited about this...get to finally use my degree with this hobby to save a little cash, and it will be fun. :)

[clamm]

30 degree are all i have seen...Im just going to use more bulbs. Im going to use 12-15 bulbs...

[NateHanson]

Cool Casey. thanks for the info. If I can't get them from 3Mrhythm I'll probably get in on this.

[clamm]

Ok, no problem...wiring them is very easy, I may do a DIY thread and show what differnet resistors will do...

[NateHanson]

I think a DIY thread would be great.

[KAS]

...having a 'workshop' at someone's house (it could be mine) when all the pieces parts come in so we could all wire them together. That way, those of us that aren't as knowledgeable about electricity could get a little help.

We did something like this awhile back when we put together some cheap float switches. The way it worked was someone hosted the 'party'. People signed up and different people picked up different parts (enough to cover everyone attending). We assembled them at the host's house, paid for a pkg of parts and went home an hour or so later with 2 float switches.

Just a thought,
-Karen

[clamm]

i am open to that...

[Armando]

what is the suggested power/transformer/etc for this?

[clamm]

ANY GENERIC TRANSFORMER. 1-6V DC OUTPUT 120AC INPUT. AT LEAST 300mA....600-1200mA idealy. you can also go 1-9V if you have to...just might have to just different resistors. If you goto the link provided you will see what he used. If in doubt, I would just duplicate his setup.

[clamm]

i would go with a 9v 300mA one, they are probably about the cheapest and the most easily to come by. You really dont need a 600mA or a 1200mA unless you plan to experiment, as do i with different numbers of them and different series/parallel circuit combo's.

[Armando]

the guy used 5 bulbs in his 4 ft tank. Is this a good number or overkill? What do you guys think?

PS: I like KAS idea!

[clamm]

im using 10 on a 75 gallon because you only get a 30 degree angle of coverage, I don't want as many dark spots... but with 5 you will be fine but you wont have 100% coverage unless you are very good and accurate with your spacing.

[clamm]

*Caution* Just a warning. I have seen people mount these on reflectors. You have to be very carefull when doing this to make sure that the leads dont short out if your reflector is metal. If mounting to a reflector I recommend only allowing the bulb to stick out through the hole because if the leads do also you can short them out. I am also adding a 3amp fb fuse in my ciruit for extra protection. these shouldn't draw that much at all...you can add them up roughly, what was it 20mA per bulb. depending on how many you use you might even use a 1amp fuse. basically you would just place the fuse in series with the anode of the 1st led. That way if the fuse opens you have no circuit, and no current going though it.

[clamm]

3m has similar leds for like .75 each so im going get them from him unless he runs out.

[Matt L.]

I'd be interested in this, as those moon lights are so darn expensive, but I'm not confident about making something water resistant and wiring it up myself. Could some of you electrically inclined people post a wiring diagram. Then I'd certainly be interested in buying some, if the group buy is still open,

Matt:cool:

[clamm]

It is. basically you have your supply with a positive and negative comming out of it. you take the negitive and connect to the anode take that wire you just connected to the anode and run it to the next led anode. so you are running them in parallel. you keep doing that till all the anodes are tied together. then you have to do the cathode portion...only this time you wire a resistor in line with each cathode. So you would come out of the + end of the supply and go into a resistor, the resistors other end would then goto the cathode of the 1st led. You would then run a wire from the same point cathode of led 1 to another resistor attached to cathode of led 2...you would continue to do this till everything is done, if you want I can help you.

[Armando]

it looks like clamm is no longer doing the group buy. Matt since you're volunteered, you're the new organizer :D

[clamm]

I Am Still, But I Think We Can All Get Them Cheaper From 3m Instead Of Ordering...so Ill Still Do It With Plans To Get Them From 3m Unless He Is Out...right Now We Have A Need For 30...if We Get From 3m They Are .75 Each If From Lc They Are 1.50 Each...

[Matt L.]

Armando,

I'm reading through my post. I can't find where it says I volunteered...:rolleyes:

Clam M.,

So basically, the wiring schematic would look something like this?
http://www1.coe.neu.edu/~mlitman/wirediag.jpg
Forgive me, it has been ages since I took E&M,

Also, just to make sure, what kind of piower supply do I need? Also, what resistance do I need?

Matt:cool:

[Armando]

is the model that 3M is selling the superbright/super duper ones? if so, i'd like to get a few. more than a few.

[clamm]

i DONT THINK THEY ARE THE SUPERBRIGHTS, HE JUST SAID THAT ARE LED'S IN THE ACTINIC LIGHT RANGE...AWAITING MORE DETAILS...

AND MATT...YOU HAVE IT DRAWN FINE BUT CURRENT FLOWS NEGATIVE TO POSITIVE SO YOU WANT THE RESISTOR ON THE OTHER SIDE SO I GUESS THE RESISTOR GOES TO THE CATHODES WHICH MAKES SENSE...THE WAY i DESCRIBED IT EARLIER WOULD BE REVERSE BIASING THE DIODE AND i DON'T THINK THAT WOULD WORK. SO LOOKS LIKE YOU HAVE IT CORRECT JUST MOVE THE RESISTORS TO THE RIGHT SIDE BEFORE THE DIODE.

[clamm]

RESISTORS SHOULD BE 1/4 W 150 OHMS. IM GOING TO PLAY AROUND WITH THIS AND SEE IF SMALLER ONES WILL BURN OUT THE BULBS...BUT 150 OHMS IS SAFE.

300mA dc supply is needed 9V

[PenMan]

I can get desktop style regulated 3.3V @ 2A power supplies. I am running my strip of LED's on these. The power supplies are $5.00 each and they do require an IEC 320 line cord (like a computer input cord). I sell these is lots of 5000. They are regulated output supplies and will produce 3.3V from no load to full load. Some of the cheaper LED lights use unregulated linear supplies and the voltage will vary from 3 to 6 V depending on the load. I can bring one Saturday to the meeting if anybody would like to see one.

[clamm]

penman is correct. on some transformers the output will varry based on load. Mainly with cheaper ones...still the one the guy used was a varriable from 1-9v and it worked fine, so I don't see any problems there.

[Armando]

penman i'd like to get one.

[DSOUZA]

How do these compare with the superlumination triple LED lights that are waterproof, 100 degree angle, and cost $5? All they need is the ac/dc converter from walmart (approx$10.00).

I have two of these and it is bright as I want it in my 135g.
http://superlumination.com/fixtures.htm

Dara

[clamm]

I think the individual led's themselves still have a 30-35 degree angle but when placed properly in relation to each other you can get 100 degrees...at least that how I understand it. But anyway, I really dont know the difference, I know that the ones im getting aren't waterproof unless you build the case and seal it yourself.

[nunofs]

I can also vouch for the superlumination LED fixtures... they're pretty bright and already include the resistor inside the fixture, as Dara said all you need is a converter... and if you get an adjustable converter you can vary the intensity of the moonlights to match your preference.

Nuno

[clamm]

from the picture on the website, i don't like how blue they are... i want a color more like the color shown in the website I listed. But its all a manner of preference. you are right about the 100 degrees I guess each diode is 100 degrees viewable. so in that respect they are nice. I just don't like the color as much.

[nunofs]

Casey, you can't really put too much faith on either of those pictures... with digital pictures it's very difficult to get accurate color rendition, especially on something that's illuminated by a blue light due to changes in white balance... you should look at the peak wavelength instead -- they are both listed as being 470nm, so should be very similar in color.

Nuno

[clamm]

humm good point. i already told 3m i would take some of his...so im going to give it a try.

[Armando]

nuno got pics?

[nunofs]

I can take and upload pics tonight... the tank still only has live rock, so there won't be any fluorescence from corals, but it should be enough to give you an idea of how it looks.

Nuno

[3mrhythm]

if you want to buy alot from me i can get you guys 100 6000mcd 3.8v 470nm leds for 40$... add one cent each for resistors so you can run 12v input... let me know! it'll take a couple weeks to get them all

[3mrhythm]

i can even mail them out prolly for free .. i can figure in the stamps to that price ... no more than a 4 person split per 100 pack though.. i can see what i can do for large orders 500+ led

[3mrhythm]

i can do the 100 packs at 40cents a piece ..(the 40$ for 100)

or

500led for $130


Specification

Emitting Color: Blue

Luminous Intensity: 4000mcd@20mA TYP (LED is current driven, if used with 30mA, they're 6000mcd)

All LED should rated at 20mA only, if seller claims it's rated at 30mA or even 50mA, they actually overdrive the LED for higher mcd rating number. Try my LED with 50mA you will get about 10000mcd, however, it means the LED will die faster:)

Viewing Angles: 30 degree ( 30 degree's 4000mcd = 20 degree's 5000mcd!! )

DC Forward Current: 30mA Max

DC Forward Voltage: 2.8-3.8V

Wavelength: 465-475nm (right about the same as an atinic bulb)

Reverse Voltage: 5V

Soldering Temperature: 260?C for 5 seconds

[3mrhythm]

i might be able to order 1000 but i need to check on my shipping price

[NateHanson]

What are you going to do with 1000 blue leds? :) You could probably light your whole reef that way!

[3mrhythm]

lol be more cost efficient

[nunofs]

nuno got pics?

Here's a photo that's pretty similar to what you actually see in person, in terms of light intensity and color:

http://www.homeontheweb.org/tmp/aquarium/reef/75g-setup/live-rock/live-rock-tank-moonlights-20041103.jpg

The moonlights are two of the superlumination 3-led fixtures, one on each side of the tank. As I mentioned before, the intensity of the light can be reduced by switching the power adapter to a lower output voltage.

Nuno

[clamm]

THOSE LOOK PRETTY GOOD NUNO. i WILL BE DOING A DIY WITH THE ONES FROM 3M...IF ANYONE ELSE WANTS SOME LET US KNOW... .75 EACH FROM 3M AND HE HAS TRANSISTORS AVAILABLE. LET ME OR HIM KNOW. IF YOU NOT GOING TO BE AT THE MEETING i CAN PICK UP FOR YOU.

tHANKS, CASEY

[jaiden]

OK, I know this may sound silly, but are there any LED's in the spectra we want for daytime lighting? Seems like with enough of them, you'd have all the light you need at safer voltage, with no chance of breaking and MUCH longer life...

how many WOULD it take? 1000? 10000? there has to be some number... IF we could get the right mix of wavelengths.

[clamm]

hehe...dont know...you want to try well how many lumens is 1 led rated at does anyone know? Do led have a candle power rating yet?

[PenMan]

I don't think that the heat would be that much less from the LEDs than the MH for the same light. I sell power supplies to a guy that makes 8x12 foot mulitcolor LED signs. He is using about 6000 watts of 5V power for the sign. When the sign is turned on, it is like a heat lamp for 6 feet away. The LEDs are packaged in groups of 9 in cluster the size of golf ball.

Tullio at ARAD is working on LED white lights. They are still more expensive than the MH for now.

[Jim Tansey]

6,000 watts at 5 volts is 1,200 amps, what size wire do you use?

Jim

[PenMan]

The used ten "banks" and bused them. Each bank was powered by a 600 watt power supply. They had to set up a delay so that each power supply did not turn on at the same time. The wiring in the back was crazy, each cluster of LEDs was hand wired. The power supplies were $750 each in volume. Not a cheap sign.

[gordonzoo]

I've ordered from this place. Slow URL but fast free shipping!
Besthongkong.com
.16/each when 100 ordered
You can string LED's in series if higher voltage is used. I used a 12 powersupply and strung 4 led in series. 3.v drop across each LED. This way one restior is used or can be ommited all together. (Do not exceed 3.5.v) Intensity of LED's would need to be increased to use a primary lighting. I understand this is being worked on.
Rich

[Armando]

I've decided to get the superlumination.

I am going to use 4 of the 3-led fixtures. Which converter should I use to power these 4 fixtures?

[nunofs]

Which converter should I use to power these 4 fixtures?


Each fixture needs 60mA so you'll need a converter rated for at least 240mA... 300mA is probably safer, as the ratings are usually a bit exagerated. The one I use is a variable output adapter from WalMart, made by Philips... comes in a red package with the words "Audio Universal AC Adapter, 1.5-12V / 300mA" and comes with a number of swappable plugs (not needed for the moonlights, just mentioned it to make it easier for you to find the box).

Nuno

[Armando]

Great, thank you Nuno, i'll pick it up at walmart.

Penman, please cancel what i said about the power.

[Armando]

my leds have been shipped yay!

[clamm]

I won a pretty cool led at the raffle...plus I bought a bounch...i recommend a 47 ohm resistor and a 6v supply... if you run 12v the resistors get pretty hot...

nice color.