Another LED Group Buy

[Chrishew09]

I emailed Mike at rapidled.com, he said to get quantities together for a possible group buy and he'll tell me what kind of discounts he could give us. Check out the website, he only sell the CREE's so just post how may blue / whites and any other items you might want. Also, here is a place you can buy heatsinks from if you wish. For misc. items like fans, wire, ect. check out digikey or mouser.

www.rapidled.com
www.heatsinkusa.com
www.digikey.com
www.mouser.com


I've added some of the pricing rapidled.com gave me, we also get free shipping.


Chris:
14 - Blue - $6.49 ea
10 - White - $6.49 ea
2 - Meanwell ELN-60-48P - $41 ea

Lisa:
1 - 24 Premium LED Do-It-Yourself Retrofit Kit w/ dimmable drivers - $265

Janey:
1 - 12 Premium LED Do-It-Yourself Retrofit Kit - $119

[J@kLö$]

so tempting but i have to spend my money on other things right now? let me know how much you get them for i might be willing to spluge if the price is right

[knockOUT]

what is everything I need?

LED
Heatsink
what else? optics? driver?

[J@kLö$]

Meanwell drive drives 12-15 LEDs
or power supply to power buckpucks,
buckpuck powers 6 LEDs at 15ea gets expensive

heatsink 2nd most expense but 1st priority
LEDs biggest expense depending how many.
How many is determind by surface area not gallons
powersupplies or drivers some drivers and some buckpucks are dimmable all are adjustabe throught potetiometer inside supply or driver but pot on adjusts current
optics are only needed for over 16" depth although people have run and had no problems to 18" others with optics with too many LEDs or too much current burned corals thoughout the depth range.  Cree optics are not the same as rebel or luxeon. Rebel optics are preferred right now because of adjustability. Cree will be making more/better options

misc wire solder and thermal epoxy wire loom to be neat fans to cool heatsinks aluminum to make a rig to mount everything to a controller or pwm to control dimmer if u get dimmible driver and a wallwart to power dim circuit 
Solder and a good solder station cheap $8 iron won't cut it.
Figure :
6 for less then 10g
6-12 for 14g biocube or similar
24-36 LEDs for 30b or 40b optics or more at higher mah
70-120g 48-100 LEDs

[Chrishew09]

Meanwell drive drives 12-15 LEDs
or power supply to power buckpucks,
buckpuck powers 6 LEDs at 15ea gets expensive

heatsink 2nd most expense but 1st priority
LEDs biggest expense depending how many.
How many is determind by surface area not gallons
powersupplies or drivers some drivers and some buckpucks are dimmable all are adjustabe throught potetiometer inside supply or driver but pot on adjusts current
optics are only needed for over 16" depth although people have run and had no problems to 18" others with optics with too many LEDs or too much current burned corals thoughout the depth range.  Cree optics are not the same as rebel or luxeon. Rebel optics are preferred right now because of adjustability. Cree will be making more/better options

misc wire solder and thermal epoxy wire loom to be neat fans to cool heatsinks aluminum to make a rig to mount everything to a controller or pwm to control dimmer if u get dimmible driver and a wallwart to power dim circuit 
Solder and a good solder station cheap $8 iron won't cut it.
Figure :
6 for less then 10g
6-12 for 14g biocube or similar
24-36 LEDs for 30b or 40b optics or more at higher mah
70-120g 48-100 LEDs

+1

[eastonreef]

ok .. so for a 40 breeder ... i'm thinking
16 blue
8 white
2 dimmable power supply's

let me know if you think this is enough or if i need anything else

[J@kLö$]

I'd be curious to see it only beef is 3 blue will be on white circuit not sure if mixing LEDs is kosher I've only seen drivers control same color. I'm hoping it's enough LEDs but soundwaves post on rc shows 24 per array over a 75 that said 24 in a 4 row by 6 config covers 24" of tank of similar dimensions. I've been told 36 over a breeder tank 30/40g.  Now thinking about it a bank of 4 added to each side of the 24 LEDs and 2 on the outside of that will spread the length better then 6x6 not sure but evil on nr told me either 3 rows@3" a row of 12 LEDs spaced at 1"oc would be best spread just seems far on the rows  something like a 7.5x20 heatsink would be required @$100 for the heatsink plus 3drivers and 36 bulbs say $500ish all said n done off rapidled webite and heatsinksusa. U will also need cooling fans and a wallwart to power them not included in price nor the frame to mount fixture. I'm pricing a 18 led setup right now depending on heatsink and configuration gonna be 250-280$ all said n done I think there u go Kelvin I need ur email to send u cad drawings of layouts. :p

[J@kLö$]

3 rows of 8 might work but the ends won't get the light like the middle food for thought. I have not yet dropped coin on this yet because of the questionable light coverage for a breeder I'm leaning towards 36   
Also dual 36 arrays is too much for a 75 talked to a guy who built one and now it's collecting dust cuz on burnt corals he said 2 30 arrays would be more suited for a 75. That said 36 to much for 24"   
24 a lil bit lite to cover 24x18 synopsis is 30 covers 24x18 so to cover 36x18 add half or 6 more bulbs to make 36 led fixture. I work for rum n frags. Money is always good too being unemployed right now sux but I would gladly build a fixture for someone. I'm how shall we say very gifted in custom work.
Hope this helps! Have a good night.

[J@kLö$]

Quick thought Kelvin told me nanotuners are makin led mods for biocube n jbj n aquapods. That said they are stuffing 18 for a bc14 and 30 for a bc29 not sure on dimensions of bc14 Kelvin has one but my bc29 is 20w x 18 f-b so I'd say 36 is your number just gotta find out cheep chrishew can get them. I might have an in on the drivers will find out lunch tome tomorrow. Let me know if anyone wants any I'll get a price quote in sure it will b round 40 shipped for 1. 6 will fit in box

[Chrishew09]

Jaklos, running blues and whites on the same series string is not an issue, but when you dim, both the blues and white will dim together, to dim separate you'll need separates supplies. The quantity of LED's for a particular tank is very debatable, all depends on what corals you have, just like with any lighting fixture. For some a PC light is okay and others MH is best, each application is different.
Like i've told people in the past, compare the lumens output of a fixture you know works to the lumens on an LED and scale accordingly. I.E. CREE's output is 107lm@350mA and ruffly 180lm@700mA.
Also maybe you read the heatsinkusa website wrong but a7.2"x20" heatsink is $43.30?

LED's 24 * ~$6.5=$156
H/S                  =$45
P/S 2 * $40       =$80
Fan                  =~$15
Misc.                =$20
Total:                  =$441

For me the only expense i have is LED's everything else i get from work, and i'm going to make my own custom power supply.

P.S. Future also sells the supplies a little cheaper

www.futureelectronics.com

[Chrishew09]

ok .. so for a 40 breeder ... i'm thinking
16 blue
8 white
2 dimmable power supply's

let me know if you think this is enough or if i need anything else

heatsink?

[J@kLö$]

Jaklos, running blues and whites on the same series string is not an issue, but when you dim, both the blues and white will dim together, to dim separate you'll need separates supplies. The quantity of LED's for a particular tank is very debatable, all depends on what corals you have, just like with any lighting fixture. For some a PC light is okay and others MH is best, each application is different.
Like i've told people in the past, compare the lumens output of a fixture you know works to the lumens on an LED and scale accordingly. I.E. CREE's output is 107lm@350mA and ruffly 180lm@700mA.
Also maybe you read the heatsinkusa website wrong but a7.2"x20" heatsink is $43.30?

LED's 24 * ~$6.5=$156
H/S                  =$45
P/S 2 * $40       =$80
Fan                  =~$15
Misc.                =$20
Total:                  =$441

For me the only expense i have is LED's everything else i get from work, and i'm going to make my own custom power supply.

P.S. Future also sells the supplies a little cheaper

www.futureelectronics.com

yes I might have read it wrong or was thinking something else but the $43 h/s cost $61.63 cut n shipped

[J@kLö$]

ok .. so for a 40 breeder ... i'm thinking
16 blue
8 white
2 dimmable power supply's

let me know if you think this is enough or if i need anything else

heatsink?

do you think 2 rows of 12 would be enough Chris?

[Chrishew09]

ok .. so for a 40 breeder ... i'm thinking
16 blue
8 white
2 dimmable power supply's

let me know if you think this is enough or if i need anything else

heatsink?

do you think 2 rows of 12 would be enough Chris?

In my opinion on a shallow 40b i think it will be okay, have you seen CREE LED's in person, they're extremely bright , i have some. Anthony (henrystyle) saw a completed fixture someone did on manhattenreef in person, and also commented on how bright the LED's are.

Also in order to take full advantage of the power supply, working in groups of 12 is the most efficient thing to do. Why use a 60W supply for 15-20W, right?

[knockOUT]

how easy or difficult is to change a bulb once istalled? say I want to change one of the whites for a blue