Veg Tent Light Build

[MattockMycol]

Hi Everyone,

I have ten 2 foot strips of the Samsung F-Series Gen 3 (SI-B8T261560WW). Here are the specs for voltage and current.
Current - Test 1.12A
Voltage - Forward (Vf) (Typ) 23V

I want to use the lights solely for vegging. What is the largest area this could cover for vegging for 18 hours a day with at least 22 DLI? Can an HLG-240H-C1050B driver be used to power them?

Thanks

 

[Airwalker16]

Hi Everyone,

I have ten 2 foot strips of the Samsung F-Series Gen 3 (SI-B8T261560WW). Here are the specs for voltage and current.
Current - Test 1.12A
Voltage - Forward (Vf) (Typ) 23V

I want to use the lights solely for vegging. What is the largest area this could cover for vegging for 18 hours a day with at least 22 DLI? Can an HLG-240H-C1050B driver be used to power them?

Thanks

You can run them with twice thatvwattage. Maybe three times.

 

[spoonayyy]

Can an HLG-240H-C1050B driver be used to power them?

Yes, that driver fits perfectly. Personally, I wouldn't drive them any harder than this either.

 

[Rocket Soul]

Hi Everyone,

I have ten 2 foot strips of the Samsung F-Series Gen 3 (SI-B8T261560WW). Here are the specs for voltage and current.
Current - Test 1.12A
Voltage - Forward (Vf) (Typ) 23V

I want to use the lights solely for vegging. What is the largest area this could cover for vegging for 18 hours a day with at least 22 DLI? Can an HLG-240H-C1050B driver be used to power them?

Thanks

You may find some voltage drop putting 10 2 foot strips in series. Most people use parallel connections on these strips. Or even a hlg240h-c2100, 5 strips in series, 2 parallel loops.

 

[jarvild]

HLG 240H-24-B is what you want for that set-up. I have 10 strips on a 45" long frame work that I use for veg covering a 2x4 area.

 

[Rocket Soul]

HLG 240H-24-B is what you want for that set-up. I have 10 strips on a 45" long frame work that I use for veg covering a 2x4 area.

Or even using 48V drivers running 2 strips in series and 5 loops. I find the 48V drivers more reusable than 24 V. Also easier with the wagos as you only need half the sockets.

 

[jarvild]

Or even using 48V drivers running 2 strips in series and 5 loops. I find the 48V drivers more reusable than 24 V. Also easier with the wagos as you only need half the sockets.

Yes , I have a couple of HLG40H-12B's I used on an xlm build I did a couple of years ago I'm trying to find a re purpose for.

 

[Rocket Soul]

You can run them with twice thatvwattage. Maybe three times.

As per datsheet those strips max out as 1.8 A. Theyre single, not double strips

 

[MattockMycol]

You may find some voltage drop putting 10 2 foot strips in series. Most people use parallel connections on these strips. Or even a hlg240h-c2100, 5 strips in series, 2 parallel loops.

Thanks for the heads up. I never knew voltage drop was a phenomenon before your post. Generally, should strips be wired parallel and cobs be wired in series?

 

[MattockMycol]

HLG 240H-24-B is what you want for that set-up. I have 10 strips on a 45" long frame work that I use for veg covering a 2x4 area.

Thanks, I am debating between using a 3x3 tent or a 2x4. What would be best to use before flowering with a 4x4? I will definitely pick up a driver that allows parallel connections.

 

[Chip Green]

I have 10 of those same SamS strips on that same driver, on a 60" frame, and can get 25K lux below 10" from canopy if needed.
I'm fairly certain I could get satisfactory results in flower even, if I had it 4-5 inches off the tops of a scrog….
There would be gaps in the intensity of course at that level due to strip spacing....

 

[Rocket Soul]

Thanks for the heads up. I never knew voltage drop was a phenomenon before your post. Generally, should strips be wired parallel and cobs be wired in series?

I dont think there is a standard. Reasons for not going serial are:
- if the string is too long you might have a voltage drop
- i heard the trace, the inner connections inside the strip, sometimes isnt isnt prepared for high voltage
- in serial you cant get thermal runaway, but im fairly certain this issue is overblown. Ive not heard anyone on the site having it. And theres ways of avoiding it with voltage adjustment drivers, hlgXXX-24/48A

 

[MattockMycol]

I have 10 of those same SamS strips on that same driver, on a 60" frame, and can get 25K lux below 10" from canopy if needed.
I'm fairly certain I could get satisfactory results in flower even, if I had it 4-5 inches off the tops of a scrog….
There would be gaps in the intensity of course at that level due to strip spacing....

Did you experience any voltage drop?

 

[Chip Green]

Did you experience any voltage drop?

Out of all the lights I've built, this is embarrassingly the ONLY one I have not checked the V drop on....Its the latest addition, and has actual heatsinks on each strip, so it actually never crossed my mind to check that out....I will have to do that. Ill let you know....

 

[MattockMycol]

Out of all the lights I've built, this is embarrassingly the ONLY one I have not checked the V drop on....Its the latest addition, and has actual heatsinks on each strip, so it actually never crossed my mind to check that out....I will have to do that. Ill let you know....

Thanks. What did you use for heatsinks? Also did you use thermal tape?

 

[Chip Green]

Heatsink USA has a .601" profile, that fits nicely on the Samsung F series single row, and yes they are secured onto those sinks with thermal tape...

 

[MattockMycol]

Heatsink USA has a .601" profile, that fits nicely on the Samsung F series single row, and yes they are secured onto those sinks with thermal tape...

For where I am located, when you add up the handling and then the shipping for those heatsinks, the shipping and handling ends up being more than the heatsinks themselves. Damn.

 

[Chip Green]

Yeah that's the only drawback on those.....Im pretty lucky, its a company in MI, so for shipping to my area in Upper MI, its still reasonable....

 

[1212ham]

Or even using 48V drivers running 2 strips in series and 5 loops. I find the 48V drivers more reusable than 24 V. Also easier with the wagos as you only need half the sockets.

Half the wiring.
I drive EB Gen-2 (19.5v) with a 42v driver I already had.

 

[1212ham]

For where I am located, when you add up the handling and then the shipping for those heatsinks, the shipping and handling ends up being more than the heatsinks themselves. Damn.

Aluminum channel or angle works well.
A shear and bending brake can turn aluminum sheet into channel.

Edit:
Check home stores and local metal shops/suppliers for angle and channel. I shear and bend sheet into channel cheaper than I can buy it. Some shops might do it at a good at a good price.

Flat sheet and baking sheets are also used. Look at the builds on RIU for ideas.

At rated power, Bridgelux EB strips can be run with no heat sink. Suspend on a frame with the tops exposed.