Introducing CobKits.com - specializing in DIY and Citizen COBs

you wanted the beast and you got the beast!

taking special orders for the 3618 light engines at a discount, single driver solution with HLG-320H-C2800B @ 320W:

http://cobkits.com/product/clu058-3618-active-light-engine/

CobKits said:

you wanted the beast and you got the beast!

taking special orders for the 3618 light engines at a discount, single driver solution with HLG-320H-C2800B @ 320W:

http://cobkits.com/product/clu058-3618-active-light-engine/

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what is the light coverage of the 3618. i got a 2' x 3' tent would two be too much for the tent one on each side. ran at 1400 mA

ill try to take some measurements in a 3x3 tent. i think it would give good coverage at 24"

for your 6 sq ft tent 2x1825 light engines at 110W each (2100 ma) would be great- like with an hlg240h-c2100b

Order inbound, Thx, excellent service to community.

my pleasure

Yo cobkits I sended you a pm but no reponse whats up ?

gotcha now, sorry for the delay

CobKits said:

gotcha now, sorry for the delay

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How to pm you?

click my picture> "start a conversation"

CobKits said:

click my picture> "start a conversation"

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I just have "profile" "follow" "ignore"

@CobKits
first, thank you for your help and support from pm
second, have you ever considered to sell also 3w led for enhancing spectrum( deep red/far red,royal blue)?
Every diy will find anything from one shop=less problem with shipping,order everything in 1 shot,saving on shipping cost.
You win,we wins,everybody wins

yes ive been trying to get them from cutter. finally got the order thru a week ago but have not been advised of a ship date yet

CobKits said:

yes ive been trying to get them from cutter. finally got the order thru a week ago but have not been advised of a ship date yet

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seems like he would be all over that order

CobKits said:

yes ive been trying to get them from cutter. finally got the order thru a week ago but have not been advised of a ship date yet

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Linear boards are being completed and are in test, custom boards always take a little time, you should get shipping notification most likely today
Cheers
Mark

nice! i figured as much

i hope to be ordering many more!

got any recs for dissipation on these? basically anything bigger than 1/4x 1" aluminum bar should handle it, right?

CobKits said:

nice! i figured as much

i hope to be ordering many more!

got any recs for dissipation on these? basically anything bigger than 1/4x 1" aluminum bar should handle it, right?

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will depend as always what current you plan to run them at, but yes 1 inch bar should do it, ideally something like extruded finned rail would be best but depends what will be most cost effective
Cheers
Mark

well im gonna run them on the softer side. is there a place on the pcb for temp measurement, or what do you normally do with single diodes?

CobKits said:

well im gonna run them on the softer side. is there a place on the pcb for temp measurement, or what do you normally do with single diodes?

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I use a FLIR thermal imager but there are fiducial marks on the board so you could solder a thermocouple to one of these, what do you usually use for temp measure?
Cheers
Mark

I usually just go by manufacturers data or estimate temp by back calculating voltage/lumen droop

any recs on good decent type J or K thermocouples to solder to boards?

back in stock as of today:

1212 3500k 90cri
1212 5000k 80cri
1212 5700k 80cri
1212 6500k 80cri
1818 3000k 80cri
1818 3000k 90cri

also got word that i *might* get 1212 3000k 80cri 10/14ish