What can I use these led drivers for? Any DIY LED people here?

I was hoping to run a prefab panel or make my own using rigid strips of samsung lm561c or at least some rapid led pucks, vero 29 gen 7, citizen or cree cxb cobs.

model #1 contains (4) drivers of constant current 520ma, variabke dc voltage of 45-75vdc and max power of 45w.

Model #2 contains (4) drivers constant current of 600ma but (2) drivers have 45-70vdc, max power of 50w and (2) 60-100vdc max power of 50w

I'm comfortable with fabricating, but trying to calculate electronic circuits and figure out what smd or panel I can run is beyond me until I really start digging through old threads and remember my electrical mathematics. I'm rusty on calculations.

I will be humbly grateful for any advice or guidance. I really hope it is simple enough of a recommendation to run a certain cob & qnty or prefab pcb smd panel.

Thank you all in advance.

Contact HLG - I modded a panel ( Mars ) with a QB 304 board using one of the drivers.
I kept the fan assembly and driver intact to aid in cooling. You will be quite surprised on bright it will be. That was how I created my first build - Driver was 100v 550ma , it had six of them inside I gutted them out kept the connectors intact to easily wire in.

I painted case with a textured hammer finish and it looks great. Super easy to build.

Contact @robincnn and @Stephenj37826 for some ideas .

Clone Chief said:

I was hoping to run a prefab panel or make my own using rigid strips of samsung lm561c or at least some rapid led pucks, vero 29 gen 7, citizen or cree cxb cobs.

model #1 contains (4) drivers of constant current 520ma, variabke dc voltage of 45-75vdc and max power of 45w.

Model #2 contains (4) drivers constant current of 600ma but (2) drivers have 45-70vdc, max power of 50w and (2) 60-100vdc max power of 50w

I'm comfortable with fabricating, but trying to calculate electronic circuits and figure out what smd or panel I can run is beyond me until I really start digging through old threads and remember my electrical mathematics. I'm rusty on calculations.

I will be humbly grateful for any advice or guidance. I really hope it is simple enough of a recommendation to run a certain cob & qnty or prefab pcb smd panel.

Thank you all in advance.

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6 of your drivers would work on QB 288. The 60-100V is too high for qb288 and too low for QB304. 72 volt Vero29 C would work on those.

Stephenj37826 said:

6 of your drivers would work on QB 288. The 60-100V is too high for qb288 and too low for QB304. 72 volt Vero29 C would work on those.

Click to expand...

Thank you very much for your input. It helps greatly.

Budzbuddha said:

Contact HLG - I modded a panel ( Mars ) with a QB 304 board using one of the drivers.
I kept the fan assembly and driver intact to aid in cooling. You will be quite surprised on bright it will be. That was how I created my first build - Driver was 100v 550ma , it had six of them inside I gutted them out kept the connectors intact to easily wire in.

I painted case with a textured hammer finish and it looks great. Super easy to build.

Contact @robincnn and @Stephenj37826 for some ideas .



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Wow, great work! I like that Idea a lot too.

Be sure to post up your rig ... There are many others floating around the forum to get some ideas ... Both strip builds and boards.

What is everyones opinion on Lumileds luxeon sun plus 20 series?

I was considering the 3up or 7up sink pad II pcb. I can increased umol/ppfd with a secondary 90° lense if needed but it would reduce my coverage area greatly.

Just something I came across last night while thinking about doing something different. It would give me the ability to play around with the overall spectrum.

I asked a reseller how many leds I would be able to drive with the forementioned drivers. He stated 15 at 3w ea. I thought it was more complicated than just a calculation of power consumption. I thought I needed to consider amperage, voltage drop and other factors. Is it really that simple or was he just lazy and trying to make a quick sale?

On adjustable drivers (not sure if yours are), you want the COBS or LED strings to be able to draw the full load or the dimming can become funky. So, there is no reason to overcomplicate things, simple ohms law and basic arithmetic are all you need.

Stephenj37826 said:

6 of your drivers would work on QB 288. The 60-100V is too high for qb288 and too low for QB304. 72 volt Vero29 C would work on those.

Click to expand...

I am sold on a QB 288 panel for sure. Now do each of the 6 drivers dedicate to a set # of channels? Curious on how to properly wire it amd what MA and wattage to expect.

Thank you so much for the insight.

Alright so I can run about (24) 3w luxeon sun plus smd for ea. 520ma driver. Going to fabricate a new system using sinkpad II 3up pcb on rails. Keep it simple.

Buying a new driver for the COB series and throwing in some lime, royal blue and UV to cover the missing spectrum gaps to meet peek chloraphyll a & b marks.

Ea. 20 series smd (NM) has a different (ma) rating but I'll be at half the max and not pushing 3w (more like 1.25-1.75w ea.) Which allows me to operate within 80% of variable DC output voltage and max power.

After going through my dusty IBEW math books and talking to my electronic engineering buddies, I got a refresher on electrical theory and lighting design. It's been many years since any electrical work and the saying, "use it or loose it" sure is true. Forgot a lot of what I learned, but lucky enough to remember quick.

Once I get all the parts ordered and in hand, I'll update with my design and ppfd, PAR testing results. The lumileds luxeon horticulture website has an awesome theoretical ppfd/par, wattage, vf, ma, etc. calculator and graph.