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I do not know if I can post a led lamp project in which I am involved ...

I received this today... It seems BIN "AB" but I would like some confirmation

Peltier in our applications is inefficient in many aspect, but it is fair experiment, better to consider the right design in air or liquid, with heatpipe or mixed copper / aluminum with heat sinks for high power in order to remain below 50 ° C. I tried to test Alpine 11 and 20 (better) but more...

in my project, for a space of 4x4 i use 9 COB at 1.4Amp,dimmable at 2.1, in the calculation of the simulated light cones and distribution seems to be the best solution,correct me if I'm wrong, in air,only forced air : Tamb 25C° = 40C° with 100 watt each, with 12" fan at 80cfm - 24db(i think...

Thanks a lot SupraSPL...an other "adept"...for help and patient.... i need an economical solution but can work stable for a long time...

what do you think about HLG-60-H-36 and CEN-60-36... current and voltage adjust....the problem they are expensive...6 pieces for 1 lamp...

ok...but the problem it's that the lamp must go 400W with 6x3070....no more....no less...

but if I connect 3x3070 Z4 at one HLG-185H-C1400, I can at best make them go to 1.4A each therefore a maximum of 55.22W ? Is that right? or is it possible that they could go a little more? my problem is always to go at 400W with 6x3070 with a reasonable solution for cabling and power supplies...

I have see this driver: Meanwell HLG-240H-42 21 ~ 42V / 5.72A / 240.24W it's possible to drive in series 3xCXA3070 Z4 and adjusted through internal potentiometer to run near 1.7A for each COB for max 200w in total?

i'm study a new lamp with 6 CXA3070 Z4, I must set to output in total 400W, 66.6 Watt each, i think at 1.7 Amp. I do not know what is best to do if a power supply for each set of 3, or use separate power supplies. in any case, which power supply would you recommend in the two different situations?

Glaciallight Heatsink (Glacialtech dept) http://www.glaciallight.com/

MechaTronix Series COB CREE CXA30XX http://www.led-heatsink.com/

I'm working on lamp project...not to much time for other....but I'm realy interested to this... in my mental ruminations I was thinking of using filters on/under blue/white led... but not phosphor filter ...:confused:

realy interesting SDS....thank a lot... speak about excited phosphor layer under luxeon led... interesting but I don't understand how can work the interaction between the two means....

a question, you plan to use 2 cob in your project? 80 / 100w each? or more at less power?

in alternative for the fan, you can use a Recom RACD03, its more compact and cost less... I use this in my proto-lamp-project with Noctua 12" and other fan...

I use noctua in all my pc,and now in all my lamp,from many years...great product and best performance in silence...

another superb project on the air.... about fan I can suggest the enermax in alternative...I know very well noctua and are real silence... CLUSTER ADVANCE 12/14

I use 2 analog timer LEGRAND OMNIREX-T with the same problem... how can I test with voltage meter?

I agree SDS,in my microgrow experiment,your work it's realy stimulant to go throgh this, have notice that the application of "correct" light parameter in quantity and quality, in veg and flow period,can contribute to use better any problem space.in a stable and controlled enviroment,read and use...