DiY LEDs - How to Power Them

[Michoacanna]

for a primary veg light get any of the cobs with a temp 4 K or higher. I prefer 5K or higher. Depending on your setup The cheaper smaller cobs like vero18, vero10, cree25XX or cree 3070 are more than adequate and will perform great for veg (smaller cobs can sit closer to the canopy, keeping the youngins warmer). I'm slowly replacing my T5s that I normally use for veg.

Thanks for the reply purplebuz. Any links of where I can buy these Cree and drivers?

 

[PurpleBuz]

do I need to spoon feed you ?

Thanks for the reply purplebuz. Any links of where I can buy these Cree and drivers?

 

[Michoacanna]

should I spoon feed you ?

My bad dude lol, jus thought I can get sum quick links instead of looking on another thread ...I know of amazon and eBay ..idk if king bright is one also. haven't looked around lately

 

[Michoacanna]

do I need to spoon feed you ?

Another thing, cuz it says I'm a new member dosent mean I'm a noob...jus simply asking where can I buy the products. Your acting like I'm asking you how to grow a plant

 

[Rahz]

Digikey is where a lot of people buy the cobs, kingbright may have lower prices though. For COBs and drivers just do a search for the part number and you'll get lots of hits. Also check octopart which is a parts search engine.

 

[PurpleBuz]

I usually find the part number and then search for it on the web, and then pick the best safe deal I can find. Places like octopart are helpful.

 

[Michoacanna]

Digikey is where a lot of people buy the cobs, kingbright may have lower prices though. For COBs and drivers just do a search for the part number and you'll get lots of hits. Also check octopart which is a parts search engine.

Thanks rahz

 

[Tazbud]

America is 60Hz and Eu is 50Hz

Thanks for looking, we are 50Hz, the driver is marked 50/60.

 

[KirikoMadriz]

Hi, Im lucking for a driver for two NICHIA 130B. I need 93V and 1.15A at 50Hz.
Any idea? Thanks

 

[Sxott]

Looking to power 2x vero 29 (5000k) at around 1.8 amps?

All I can see is LPF-90D-48
These will work but spending 100 bucks seems crazy for just 2 leds chips.

 

[Sxott]

One more question.
Can you put some star leds in series with your cobs if they use the same current?
I have 16 volts to spare on by 3000k build and would like to throw in some 3v royal blues.
I have an hlg-185h-c1050 with 5 cxb3070s. That leaves me with 16 volts to spare on each driver.

 

[frica]

One more question.
Can you put some star leds in series with your cobs if they use the same current?
I have 16 volts to spare on by 3000k build and would like to throw in some 3v royal blues.
I have an hlg-185h-c1050 with 5 cxb3070s. That leaves me with 16 volts to spare on each driver.

If they use the same current and you have spare volt left then it should work

 

[bizfactory]

Anyone have a favorite cheap individual driver for a Vero 18 v2? Something between 700ma and 1050ma. I would also be ok with a driver that could run two Vero 18s.

Was thinking about this http://www.aliexpress.com/item/Free-shipping-high-quality-30W-900mA-LED-driver-power-supply-LED-floodlight-driver-10-series-3/1874656946.html

 

[nevergoodenuf]

Found a good read on dimmable drivers here http://www.ledsmagazine.com/articles/print/volume-12/issue-6/features/developer-forum/understand-
Also seen that Lumiled has some COB's that have some decent efficiency, but have had time to compare price to output.

 

[salmonetin]

...the direct link dont go for me .. but maybe this helps a bit.... i like the reads... ...thanks for the link nge...

Understand the Hidden Costs of free 0 - 10 V LED Dimming Drivers

http://www.ledsmagazine.com/articles/print/volume-12/issue-6/features/developer-forum/understand-the-hidden-costs-of-free-0-10v-led-dimming-drivers.html

FOCUS ON: Robust LED Drivers are Critical to Enabling Quality solid-state lighting

http://www.ledsmagazine.com/articles/2014/07/focus-on-robust-led-drivers-are-critical-to-enabling-quality-solid-state-lighting.html

Controlling LED lighting systems: introducing the LED Driver

http://www.ledsmagazine.com/articles/2004/12/controlling-led-lighting-systems-introducing-the-led-driver.html

Driving LED lamps – Some Simple Design Guidelines

http://www.ledsmagazine.com/articles/print/volume-4/issue-8/features/driving-led-lamps-some-simple-design-guidelines.html

Simplifying the Sophisticated: LED Driver Selection made easy

http://www.ledsmagazine.com/articles/print/volume-11/issue-4/features/specification/simplifying-the-sophisticated-led-driver-selection-made-easy.html

Proper Driver Design eliminates LED light strobe flicker

http://www.ledsmagazine.com/articles/print/volume-11/issue-4/features/developer-forum/proper-driver-design-eliminates-led-light-strobe-flicker.html

Low-voltage LED lamps present unique driver challenge

http://www.ledsmagazine.com/articles/print/volume-9/issue-2/features/low-voltage-led-lamps-present-unique-driver-challenge-magazine.html

ANSI recognizes need for LED Driver Testing Standards

http://www.ledsmagazine.com/articles/print/volume-11/issue-5/features/standards/ansi-recognizes-need-for-led-driver-testing-standards.html



Saludos

 

[nevergoodenuf]

Thanks Sal, I was way to lazy to do all that.

 

[Sevren]

Driver question for the HLG-185H-C1400. Is it possible to run 3 CXB3070's and 1 CXA3070's off one? They have different Vf but they equal out to 142.77 out of the maxed out 143 Vf

 

[Tazbud]

Yes, if that is the Vf (you can probably go a few volts over without a drama)

 

[salmonetin]

Driver question for the HLG-185H-C1400. Is it possible to run 3 CXB3070's and 1 CXA3070's off one? They have different Vf but they equal out to 142.77 out of the maxed out 143 Vf

...my estimation... i hope my numbers are ok...

3 CXB3070

Vf @ 50ºC @ 1400mA = 35,59 * 3 = 106,77 V ....4 = 142,36 V

1 CXA3070

Vf @ 50ºC @ 1400mA = 37,30 V

Vf tot = 106,77 + 37,30 = 144,07

Saludos

 

[Tazbud]

Oh, Suspense!?