modular overkill led striplight build

cobshopgrow

Well-Known Member
@Rocket Soul , hey man, hope you enjoy your holliday
just meassured with a ruler
the spectromaster in the picture above should be about 11" away from the light.

regarding light green, yes thats tricky.
uv could be always a factor, but i use much less then nachooo, 8w, 3h, "just" UVA, should be on the safe side.
toke allready said some phenos are light green, dinafem wirte also, light green.
but can imagine you saw more criticals then me.

660nm, that could really be that it bleaches more, i cant tell you, its efficient taken as we all know.
the spectrum have a 660nm peak, but all in all its just 20w, wall, on 9 sqare feet and included in the 200w total.

without knowing it really,i say, yes, they simply have enough photons for what they can manage in this enviroment.
 

cobshopgrow

Well-Known Member
Day 17 flower.

the plant got burned in the past and is riding the edge to take all the light avaiable.
P1030419.JPG
looks like theyre not stretching that much anymore and will stay pretty small.

beside the bleaching, the buds develop quite well.
P1030420.JPG

bleaching is mostly on older growth.
it looks and behave pretty much like describd here.
P1030423.JPG
P1030424.JPG
P1030425.JPG
 

cobshopgrow

Well-Known Member
flower day 24.

well ,leaves arent that nice, but but, the buds, pretty ok, at least there are lots of them.

still giving just about 200w wall watts to the 3x3 area with the mainlight and have no problem having my 900+ at the tops, even in the edges.
still some hours uva and far red, 8 and 6W each.

i try to stay below 1000ppfd, i burned too much allready.

could be nutirents werent on point either, had to flush a small salt buildup, while seems to be ok now.
runoff is atm lower then in, 1.7 in 1-6 out.

otherise its hard to diagnose for me whats wrong if any is wrong other then too much photons and/or not the right enviroment for it.

D24
P1030492.JPGP1030491.JPG

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no algae in the missused clear airtubes so far, will change them when it shows up, have some black at hand now.
 
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Airwalker16

Well-Known Member
flower day 24.

well ,leaves arent that nice, but but, the buds, pretty ok, at least there are lots of them.

still giving just about 200w wall watts to the 3x3 area with the mainlight and have no problem having my 900+ at the tops, even in the edges.
still some hours uva and far red, 8 and 6W each.

i try to stay below 1000ppfd, i burned too much allready.

could be nutirents werent on point either, had to flush a small salt buildup, while seems to be ok now.
runoff is atm lower then in, 1.7 in 1-6 out.

otherise its hard to diagnose for me whats wrong if any is wrong other then too much photons and/or not the right enviroment for it.

D24
View attachment 4459262View attachment 4459263

View attachment 4459264
View attachment 4459265
no algae in the missused clear airtubes so far, will change them when it shows up, have some black at hand now.
Don't wait til algae shows up. Just swap for black before its a problem, buddy.
 

Airwalker16

Well-Known Member
Never.and I see now these are 10.9V strips and are 390mm. Very cool. Super price drop at 100.
Can't believe they can Max at 1,700ma. Probably almost 2A if you had it on a beefy heatsinkusa extrusion.
 

cobshopgrow

Well-Known Member
thanks,i will probalby change the tubing soon, just busy with setting up another light.

looks like youve found the datasheet allready, there is nice curve which can be really worked with.

havent tested really high mA so far, my guess is/was 700mA are fine without any cooling.
i dont even use the 525mA, shouldnt be more then 300mA in real i am using.
 

cobshopgrow

Well-Known Member
i can not tell, i dont even know which diode they use.
would think if someone want to buy them from bridgelux, they would sell it.

Saying that, on paper the lm301b/h looks better,you would need to use quite some of the bridgelux to get in the ballpark of the lm301b.
while you would also need quite some lm301b to make it comparable to the bridgelux, a few hundred shouldnt be enough.

well, am sure you know the numbers.

below 500mA there isnt much efficiency gain with these eb3 leds, if the datasheet is right (they may didnt evalauted this region well, idk).
 

Rocket Soul

Well-Known Member
@Rocket Soul
true, there could be some gain hidden.
well, cant change it anyway.
the bridgelux chips perform nicely if you take a lot, no question there :)

some progress
View attachment 4463265
Thats a beautiful build. I especially like how you could easily make it cover more, separating the two halves a bit, with a few perpendicular strips in between. Maybe it would give more even cover as you would have a hole in the middle sorta. Maybe i did the wrong thing ordering the 2 footers.
 

Airwalker16

Well-Known Member
I'm a total noob to t slot. What's the screws being threaded into? Is there a rail you inserted that runs the whole length with even spaced holes threaded for the holding screws?
 

cobshopgrow

Well-Known Member
Thats a beautiful build. I especially like how you could easily make it cover more, separating the two halves a bit, with a few perpendicular strips in between. Maybe it would give more even cover as you would have a hole in the middle sorta. Maybe i did the wrong thing ordering the 2 footers.
thanks
ah, you did well for sure ordering the 2 footers.
you probably bought max diodes for least money for your config.
the 340mm ones fited my plans quite ok for the given options.
combined with the 100 pricebreak, decission made.

i made the gap in the middle a little wider this time as the tent will be slightly bigger.
the middle is a bit hotspotty anyway.

..ill may finally do a par map in the 1mx1m, just dont want to spend a whole weekend on it, may 16 measuremt point max 2 heights, no nice presentation of the data.
would be interested in that too.
 

cobshopgrow

Well-Known Member
So those xlg-25-a drivers are to run what? They're only 0.7a. I'm assuming the red 3 diode boards?
.

the XLG25 will drive the UVA section, but youre right it could be used for the 730nm too (while i would use more 730nm diodes then).

4 strips @ 3 leds in series, and same in parallel, so 8 strips in total.
you can push the xlg by the screw to 1.05A, but i dont plan that.
i am more looking for 500mA or less, that gives 250mA (combined series parallel) on the UVA leds (absolute max i am looking for).

 
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