Light Bridgelux eb strips gen 2

Gargamel0

Active Member
Hi all, I need advice on which driver to use for 18 eb strips 280mm to go to 350 mA.Thanks
 
Last edited:

Rocket Soul

Well-Known Member
In the end, I decided for 12 x BXEB-L0590U-30E1500-C-C3 , HLG-240H-20AB :D
Those are the slim version, i worked with them and i didnt really like them that much. They are very flimsy, i would recommend against using them without sinking or some backing, one clumsy movement in your grow and they very well might break. They also seem to have slightly worse thermal handling the the gen3 regs. Another thing: they dont have any mounting holes for screwing them onto something, only some flimsy notches which didnt inspire very much.

What they do standout for is if you want to build with very high diode density: you can pack in over 300 diodes in a 24x2 " space.
 

Gargamel0

Active Member
Those are the slim version, i worked with them and i didnt really like them that much. They are very flimsy, i would recommend against using them without sinking or some backing, one clumsy movement in your grow and they very well might break. They also seem to have slightly worse thermal handling the the gen3 regs. Another thing: they dont have any mounting holes for screwing them onto something, only some flimsy notches which didnt inspire very much.

What they do standout for is if you want to build with very high diode density: you can pack in over 300 diodes in a 24x2 " space.
Thanks, I plan to stick them with thermal tape on a large aluminum sheet
 

cobshopgrow

Well-Known Member
i cant share this view on the slims.
they are flexible, but thats a good thing, they simply flex back.
theyre the first mid power led strips who not even have one dim led ,after a year of of use, no uneven dimming on low settings, all fine.
.P1040228.JPG
and i had quite some failed leds on mpcb based midpower lights before.

the notches are perfect in my eyes.
P1040226.JPG
2 screws is all you need to have it solid mounted, you can even put another strip in between without increasing the screwcount further.

my thermals are exellent, no worries there, and i apreciate the airgaps for an exellent airmovement.
quite sure my led dies havent seen much more then 30c tops, the thermal can pics spoke a clear language there.

a downside i see are the more flimsy connectors, you have to use the right wire gauge solid core to work with them and you probably dont want to mount and unmount them too often, this can easily cause broken connectors.
 

Gargamel0

Active Member
i cant share this view on the slims.
they are flexible, but thats a good thing, they simply flex back.
theyre the first mid power led strips who not even have one dim led ,after a year of of use, no uneven dimming on low settings, all fine.
.View attachment 4760615
and i had quite some failed leds on mpcb based midpower lights before.

the notches are perfect in my eyes.
View attachment 4760618
2 screws is all you need to have it solid mounted, you can even put another strip in between without increasing the screwcount further.

my thermals are exellent, no worries there, and i apreciate the airgaps for an exellent airmovement.
quite sure my led dies havent seen much more then 30c tops, the thermal can pics spoke a clear language there.

a downside i see are the more flimsy connectors, you have to use the right wire gauge solid core to work with them and you probably dont want to mount and unmount them too often, this can easily cause broken connectors.
i cant share this view on the slims.
they are flexible, but thats a good thing, they simply flex back.
theyre the first mid power led strips who not even have one dim led ,after a year of of use, no uneven dimming on low settings, all fine.
.View attachment 4760615
and i had quite some failed leds on mpcb based midpower lights before.

the notches are perfect in my eyes.
View attachment 4760618
2 screws is all you need to have it solid mounted, you can even put another strip in between without increasing the screwcount further.

my thermals are exellent, no worries there, and i apreciate the airgaps for an exellent airmovement.
quite sure my led dies havent seen much more then 30c tops, the thermal can pics spoke a clear language there.

a downside i see are the more flimsy connectors, you have to use the right wire gauge solid core to work with them and you probably dont want to mount and unmount them too often, this can easily cause broken connectors.
thanks
 

Rocket Soul

Well-Known Member
i cant share this view on the slims.
they are flexible, but thats a good thing, they simply flex back.
theyre the first mid power led strips who not even have one dim led ,after a year of of use, no uneven dimming on low settings, all fine.
.View attachment 4760615
and i had quite some failed leds on mpcb based midpower lights before.

the notches are perfect in my eyes.
View attachment 4760618
2 screws is all you need to have it solid mounted, you can even put another strip in between without increasing the screwcount further.

my thermals are exellent, no worries there, and i apreciate the airgaps for an exellent airmovement.
quite sure my led dies havent seen much more then 30c tops, the thermal can pics spoke a clear language there.

a downside i see are the more flimsy connectors, you have to use the right wire gauge solid core to work with them and you probably dont want to mount and unmount them too often, this can easily cause broken connectors.
I can imagine that the one footers have a nicer feel with less flimse. And yeah, the connectors are pita that i had almost forgot about. I had to regauge stranded 1mm wire for about 100 strips.
 

cobshopgrow

Well-Known Member
i had some respect when i saw people mounting 4 foot slims, they really need some fixpoints.
the 340mm ones will bend way less (theyre a bit more then one foot, one reason i choosed them).

i mean the bendiness is strange to me anyway, i somehow think its more a feature then a bug.
compared to some regular PCB similar size n shape, just 1mm wider.
the regular PCB is FR4, the Brdigelux strip is CEC, theyre both glasfibre/glue mixed, the glas have a diff. structure, but no real differences for us in the end.
stil? maybe there is something special about the ledstrip pcb we dont know, as its somehow different.
lP1040232.JPG
clear to see even the 340mm one is bendy out of the box, all of them are, while all of them work beatifully as long youre not abusing the connectors.
i couldnt imagine to rework a 100 wires:o, but 0.75mm2 solid core with a 10$ automatic wire stripper took the burden of my shoulders.
thumps up that you pulled through, even just having 1mm stranded at hand, you have some real patience and handy fingers.
 

Rocket Soul

Well-Known Member
i had some respect when i saw people mounting 4 foot slims, they really need some fixpoints.
the 340mm ones will bend way less (theyre a bit more then one foot, one reason i choosed them).

i mean the bendiness is strange to me anyway, i somehow think its more a feature then a bug.
compared to some regular PCB similar size n shape, just 1mm wider.
the regular PCB is FR4, the Brdigelux strip is CEC, theyre both glasfibre/glue mixed, the glas have a diff. structure, but no real differences for us in the end.
stil? maybe there is something special about the ledstrip pcb we dont know, as its somehow different.
lView attachment 4761170
clear to see even the 340mm one is bendy out of the box, all of them are, while all of them work beatifully as long youre not abusing the connectors.
i couldnt imagine to rework a 100 wires:o, but 0.75mm2 solid core with a 10$ automatic wire stripper took the burden of my shoulders.
thumps up that you pulled through, even just having 1mm stranded at hand, you have some real patience and handy fingers.
I had some .75mm but the strands was too bendy so it wouldn't go in. Luckily i had already bought one of these tools which will regauge easily to any gauge, just so quick snipps. But it was a bloody mission to get i t done.
 

cobshopgrow

Well-Known Member
got you.
i dont have the details of your build in my head.
but basically sounds good, if you reach the power on max youre after while having the ADJ wide open and limited a tad with Vo, let it work.
 

ilovereggae

Well-Known Member
i had some respect when i saw people mounting 4 foot slims, they really need some fixpoints.
the 340mm ones will bend way less (theyre a bit more then one foot, one reason i choosed them).

i mean the bendiness is strange to me anyway, i somehow think its more a feature then a bug.
compared to some regular PCB similar size n shape, just 1mm wider.
the regular PCB is FR4, the Brdigelux strip is CEC, theyre both glasfibre/glue mixed, the glas have a diff. structure, but no real differences for us in the end.
stil? maybe there is something special about the ledstrip pcb we dont know, as its somehow different.
lView attachment 4761170
clear to see even the 340mm one is bendy out of the box, all of them are, while all of them work beatifully as long youre not abusing the connectors.
i couldnt imagine to rework a 100 wires:o, but 0.75mm2 solid core with a 10$ automatic wire stripper took the burden of my shoulders.
thumps up that you pulled through, even just having 1mm stranded at hand, you have some real patience and handy fingers.
how hard are you running each strip? also are you mounting them to heatsinks or just aluminum sheets?
 
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