New to diy and overwhelmed

1

1212ham

Well-Known Member
wrinkles88 said:
Lol I’m looking it up right now.

So in your previous quote of 750 for 1000 Watts, that will cover 4x8? Does that include drivers as well?
Click to expand...
Sorry, that's US dollars. But it does include the drivers.

It would cover 4x8, but I defer to Randomblame. Most people suggest 30-40 watts/square foot, but that probably overlooks the constantly increasing efficiency of LED and the efficacy of strips in particular.

I just stumbled on this...

"Digikey has good prices on the LEDs but you have to do a search for the FB24B part number you want. For whatever reason they don't show up under the F series Gen3 listing.
3000K: SI-B8VZ91B20WW
3500K: SI-B8UZ91B20WW
4000K: SI-B8TZ91B20WW
5000K: SI-B8RZ91B20WW"
https://www.420magazine.com/forums/grow-lighting/413216-riders-first-foray-into-led-strip-lighting-samsung-h-series-gen3-16.html
 
W

wrinkles88

Active Member
1212ham said:
Sorry, that's US dollars. But it does include the drivers.

It would cover 4x8, but I defer to Randomblame. Most people suggest 30-40 watts/square foot, but that probably overlooks the constantly increasing efficiency of LED and the efficacy of strips in particular.

I just stumbled on this...

"Digikey has good prices on the LEDs but you have to do a search for the FB24B part number you want. For whatever reason they don't show up under the F series Gen3 listing.
3000K: SI-B8VZ91B20WW
3500K: SI-B8UZ91B20WW
4000K: SI-B8TZ91B20WW
5000K: SI-B8RZ91B20WW"
https://www.420magazine.com/forums/grow-lighting/413216-riders-first-foray-into-led-strip-lighting-samsung-h-series-gen3-16.html
Click to expand...
So Randomblames recommendation should work fine? 12 strips with 4 drivers?

What part number would I want for the lights? I know with the Cree it was the 3500, is it the same with these ones?
 
1

1212ham

Well-Known Member
wrinkles88 said:
So Randomblames recommendation should work fine? 12 strips with 4 drivers?

What part number would I want for the lights? I know with the Cree it was the 3500, is it the same with these ones?
Click to expand...
Randomblame is one of the smart guys here and knows far more about LED than I do. You can have confidence in anything he suggests.

3500 is the color temperature, not a part number. 3000k is warm white, 5000k is a cooler white. Most people are using 3500k for veg and flower, SI-B8UZ91B20WW.
Some use a mix of 3000k and 4000k or 5000k. Many will use a 4000k-5000k for veg and 3000k for flower or something similar.
 
Last edited:
W

wrinkles88

Active Member
1212ham said:
Randomblame is one of the smart guys here and knows far more about LED than I do. It should work better than fine.

3500 is the color temperature, not a part number. 3000k is warm white, 5000k is a cooler white. Most people are using 3500k for veg and flower. SI-B8UZ91B20WW
Some use a mix of 3000k and 4000k or 5000k. Many will use a 4000k-5000k for veg and 3000k for flower or something similar.
Click to expand...
Would this be the correct led?
https://www.digikey.ca/products/en?keywords= SI-B8UZ91B20WW
 
Randomblame

Randomblame

Well-Known Member
wrinkles88: 14069390 said:
@Randomblame when you have sometime could you PM and kind of walk me through this?
Click to expand...

Of course, mate, I could but as I told you in my previous post, it's pretty simple.

At first I would order strips and drivers and in the meantime I would call a scrap yard and ask for some used alu c-channel. Every metal store should have them or you take it from e3ay.

1x 2x 1" with 1150mm length fits perfect. Connect the channels to a frame using horizontal struts and when you get the strips screw them to the c-channels. (alternatively use double sided thermal tape to avoid drilling a lot of holes)

Each strip has two pair of connectors which means no soldering. An example for parallel wiring is posted above but I would recommend to visit LEDgardener's website. He explains it very well...

http://ledgardener.com/
 
Randomblame

Randomblame

Well-Known Member
This is the thermal tape:

https://www.ebay.com/itm/0-2mm-Thick-25M-Roll-LED-HeatSink-Double-Sided-Adhesive-Thermal-Transfer-Tape/391942108444?hash=item5b4191f51c:m:mBZGjiUvoAzFhazS1uUiXXQ

For internal wiring from strip to strip use awg18 or awg20 but solid core wires. Strips are also constant current so wiring strips and COB's is more or less the same. It's only easier because you need less strips than COB's and the strips have poke-in connectors already build-in.

Feel free to ask if you need more help. I'll see it if you put a @ in front of my name ...
 
Randomblame

Randomblame

Well-Known Member
1212ham said:
Randomblame is one of the smart guys here and knows far more about LED than I do. You can have confidence in anything he suggests.

3500 is the color temperature, not a part number. 3000k is warm white, 5000k is a cooler white. Most people are using 3500k for veg and flower, SI-B8UZ91B20WW.
Some use a mix of 3000k and 4000k or 5000k. Many will use a 4000k-5000k for veg and 3000k for flower or something similar.
Click to expand...
Thanks, mate! That goes down like 12 years old Scottish single malt. Me gets really warm around the heart ...
 
W

wrinkles88

Active Member
@Randomblame the drivers you suggested (HLG-240H-48A) are sold out on Digikey. Would you recommend another driver, or another location to buy them from?

Do you think 4 of these would be enough to replace 2k hps, or should I add some more?
 
Randomblame

Randomblame

Well-Known Member
1212ham said:
@Randomblame, I don't have experience with the F-series, do you feel they can be run at 1,73A per strip with out heat sink? I would guess not based on my experience with EB strips.

Also, how do you get the 280w figure for the driver? I looked at the test report but didn't see it.
Click to expand...

F-Series double row 4footers are designed to run with 46v and 2,24A and from datasheet the temps reach 65°C, which is pretty hot to touch. To drive them at 1,73A means ~96mA per diode. H-Series strips use the same diodes but driven @80mA the strips temperatures reach 50°C, but F-series has more diodes and more total watts. So from my expirience the temps should stay at around 60°C with no heatsinks. BUT there is always a little airflow inside a tent and if you use c-channels or an alu-sheet for mounting, temps should stay around 50°C.

Meanwell drivers generally have a few percent more power (6-8%) and they achieve 94% efficiency. An HLG-240 is indicated with 250w, plus 6% and there are about 265w x 0.94% driver efficiency means ~282w from the wall.

Below is the datasheet, have a look at the dimming section. A typ drivers and B typ drivers with open dimmer circuit can reach up to 108%.

Screenshot_20180212-072845.png
 

Attachments

Cold$moke

Cold$moke

Well-Known Member
Randomblame said:
That's the one you want. It's 3000°k and it's been proven that this is the most efficient spectrum and can be used for veg and flowering.

https://www.digikey.ca/product-detail/en/samsung-semiconductor-inc/SI-B8VZ91B20WW/1510-2229-ND/6676693?cur=CAD&lang=en
Click to expand...

Hey man im planning a small f strip build my self

Is there any links i can read about why 3000 is the best choice.

Im getting ready to order everything per ledgardener 4x4 4dual f strip. W the 480 a driver

But i havent decided on a color

Any help would be much appreciated
 
F

Fubard

Well-Known Member
Cold$moke said:
Hey man im planning a small f strip build my self

Is there any links i can read about why 3000 is the best choice.

Im getting ready to order everything per ledgardener 4x4 4dual f strip. W the 480 a driver

But i havent decided on a color

Any help would be much appreciated
Click to expand...
Is it not because 2700-3500K gives the best balance between "blue" and "red" wavelengths so you can use the one light source all the way from seedling to harvest?

That's what I've seen others say anyway, it's the compromise to save changing things as you switch from veg to flower
 
You must log in or register to reply here.
Top