Introducing CobKits.com - specializing in DIY and Citizen COBs

[CobKits]

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/

 

[music64]

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/

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

 

[CobKits]

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

 

[mx5spd]

Order inbound, Thx, excellent service to community.

 

[CobKits]

my pleasure

 

[optzulu]

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

 

[CobKits]

gotcha now, sorry for the delay

 

[G84]

gotcha now, sorry for the delay

How to pm you?

 

[CobKits]

click my picture> "start a conversation"

 

[G84]

click my picture> "start a conversation"

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

 

[G84]

@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

 

[CobKits]

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

 

[sixstring2112]

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

seems like he would be all over that order

 

[welight]

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

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

 

[CobKits]

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?

 

[welight]

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?

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

 

[CobKits]

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?

 

[welight]

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?

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

 

[CobKits]

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?

 

[CobKits]

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