DIY LED grow lights experiences

Now ..
Brother GreenSurfer ...
Let me show you the Guod-Stardustsailor prototypes ...

(They are DIY by me ,but Guod really has done most of the "behind the scene " work ...
His help & knowledge are more than precious ! )

Sorry for hi-jacking the thread ,for a moment-...

<=the boxes in order of "evolution" ..To the left the first ..
To the right the newest...(still uncomplete )..
<=Two of them ,are going to be "flowering" panels ...
<=..Having 8x LCW CQ7P.CC 2700K & 4x LH CP7P (hyper red ) ...(The third is going to be a "vegging" panel ,with more blue ...
4x NW 4000 K- 4x WW 2700 K & 4x hyper reds ... )
.....

Oh ...
Hi-jackin' is over ,now ...

guod said:

the Stanley Emitter has an Rth of 20C/W. are you joking greensurfer?

Click to expand...

yes Rth js 20°C/W but they are made to be hot, and max junction temp 150°C



and it is better to run them at low current, max 400mA, 155% flux at 700mA VS 170% flux at 700mA for a WW oslon

jubiare

Gee.. Look for this:
NewLED,OSLON SSL 80,White,2700K,80 deg 130lm​

Click to expand...

where did you see that, any ref or Q code?

stardustsailor said:

Now ..
Brother GreenSurfer ...
Let me show you the Guod-Stardustsailor prototypes ...

(They are DIY by me ,but Guod really has done most of the "behind the scene " work ...
His help & knowledge are more than precious ! )

Sorry for hi-jacking the thread ,for a moment-...

View attachment 2619867<=the boxes in order of "evolution" ..To the left the first ..
To the right the newest...(still uncomplete )..
View attachment 2619866<=Two of them ,are going to be "flowering" panels ...
View attachment 2619865<=..Having 8x LCW CQ7P.CC 2700K & 4x LH CP7P (hyper red ) ...(The third is going to be a "vegging" panel ,with more blue ...
4x NW 4000 K- 4x WW 200 K & 4x hyper reds ... )
View attachment 2619864.....

Oh ...
Hi-jackin' is over ,now ...

Click to expand...

you're welcome SDS! very nice protos! congrats to you and to Guod!

i love the panel AM meter on the lamp , i did the same thing one many protos

now let's see them in action!! the only comment I will make is that this kind of lamp will create an hot spot, personnaly i perfer many smaller engines distributed along the grow area

i love the panel AM meter on the lamp

, i did the same thing one many protos..


I know...I really like your DIY designs ...

edit2: Buhhh, they have cut tape of CR7P.... EC and PC, but not CC

here is a GS vegging pannel, 3x6leds, 3 LUW CP7P / 3 LH spectrum at 500mA, coverage 70x30cm, passive cooling, 28W

Also the hyper red T2 is now sold as standard lowest bin and not T1 anymore ...about time they are doing it.. Still the rebels are available at better radiant flux.
But.. Osrams hyper reds are nice with their large band (peaking at 645nm)

Tempo di consegna, se non a magazzino 5 settimane=Non-Stocked Lead-Time 5 Weeks..We'll have to wait ,a bit ,I guess ..
But that's great news !!!!!

The really powerful CR7P.CC ,has come out to market ,at last !
And at what price tag !
Coooooool......

green surfer said:

yes Rth js 20°C/W but they are made to be hot, and max junction temp 150°C

View attachment 2619868

and it is better to run them at low current, max 400mA, 155% flux at 700mA VS 170% flux at 700mA for a WW oslon

View attachment 2619870


where did you see that, any ref or Q code?

Click to expand...

http://uk.rs-online.com/web/p/visible-leds/7650551/
There's others too @rs components (UK for Europe I think)

green surfer said:

here is a GS vegging pannel, 3x6leds, 3 LUW CP7P / 3 LH spectrum at 500mA, coverage 70x30cm, passive cooling, 28W

View attachment 2619886

Click to expand...

I should make myself one like that ....
Just for the ~4 weeks of vegging ...

Frustrating to be about to put together a panel with SSL's, knowing there is already a new version out that i can't buy...

edit: I see they have single units of EC on RSonline, have you seen CC?

jubiare said:

Also the hyper red T2 is now sold as standard lowest bin and not T1 anymore ...about time they are doing it.. Still the rebels are available at better radiant flux.
But.. Osrams hyper reds are nice with their large band (peaking at 645nm)

Click to expand...

That is their biggest advantage over the rest "hyper-deep reds " of other brands ....

"Frustrating to be about to put together a panel with SSL's, knowing there is already a new version out that i can't buy..."
Just wait a bit ...
Won't be long until they hit the market ....

They must already be available - The lead time has been 5 weeks for ages - i guess they are just not going to be held in stock by any of the major retailers... :/

If i was using ssl 80 and not 150, i would almost think it was worth buying a roll, and reselling in smaller chunks. Doubt many other people are using the wide angle SSLs though

On that subject, what are you guys honest opinions about my plan to use SSL 150?

To remind you, the reason for it is to make use of a huge heatsink, that has a small footprint... I want to cover more than would be possible with the 80's.

Well.. Given I work with 170° golden dragons finely..
You can def run them very close to the plants
They blend better with other colours...

It's down to personal preference many would disagree and prefer narrower °

SnotBoogie said:

They must already be available - The lead time has been 5 weeks for ages - i guess they are just not going to be held in stock by any of the major retailers... :/

If i was using ssl 80 and not 150, i would almost think it was worth buying a roll, and reselling in smaller chunks. Doubt many other people are using the wide angle SSLs though

On that subject, what are you guys honest opinions about my plan to use SSL 150?

To remind you, the reason for it is to make use of a huge heatsink, that has a small footprint... I want to cover more than would be possible with the 80's.

Click to expand...

-Then yes ,my guess ,is that the 150's will do the job ..
But :

-Panel has to be closer to plants ..
-Reflective material surrounding the grow space ,is a must ..
-Maybe you'll have to use more leds ....


I would like the NW oslons in my new panel to be 150's ...
Better dispersion of blue wls ....
"Softer blue touch " to plants ..
And not a " blue direct punch " ,given by the SSL 80's...

jubiare said:

Well.. Given I work with 170° golden dragons finely..
You can def run them very close to the plants
They blend better with other colours...

It's down to personal preference many would disagree and prefer narrower °

Click to expand...

I think it is just a preference / decision ,that should be taken ,while taking into account - mainly- the grow space area/volume ...

But ,basically ,what you state ,is absolutely true ...

stardustsailor said:

taking into account - mainly- the grow space area/volume ...

Click to expand...

What do you mean by this?

SnotBoogie said:

What do you mean by this?

Click to expand...

Surface of grow space * height of grow space = volume of grow space ...

If height is a problem ,then going wide angle lens ,is probably the best idea ,in order to cover as much surface as possible ...
Plus ,that light will "blend" much better ,at close distance ,'exiting' the leds ....

But for larger grow spaces ,narrow angle leds offer "concentrated" light cones ,without much of light power ,being "wasted " sideways ...

( At larger grow spaces ,reflected light from enclosing reflecting walls (if any ) ,
is more of a waste ,indeed...
While in small / tight grow spaces ,side-wall reflected light is still used fine by plant(s) ,without severe losses from reflection/distance ...)

totally agree with SDS

another way to do it would be to use SSL150s at the center of the lamp and SSLs80 at the sides