Samsung LT-F564B

[hcf2012]

Hi All
I've been reading this forum for a while and am blown away by the knowledge shared. I have no knowledge of electronics or circuitry, so what I am about to ask may have an incredibly simple solution.
Anyway I have identified a space that I wish to illuminate. Dimensions are:
31x13x52 inches high
79x33x132 cm
The inside of a cupboard, basically. I think that the Samsung PCB identified in the title has the dimensions to perfectly illuminate this space (I am eager to be corrected by anyone on this point). Also it has cutting-edge efficiency which is crucial to the outcome of my "seed" of a project (I will explain more to anyone interested).
As it stands, it is the most simple circuit: a simple stand-alone PCB. No sequence or series wiring to consider. I just need a AC to DC driver. I live in a 240V AC wall power supply area (UK). The PCB stats taken from Samsung's data sheet are:
Current (mA)
Typical: 1120
Maximum: 1800
Voltage (V DC)
Minimum: 43.7
Typical: 46
Maximum: 48.4
I think I have identified the Meanwell ELG-150-C family of drivers as the most suitable, with the 1750 dialled right down being one with potential for expansion of the circuit.
Can anyone confirm my findings? Or am I barking up the wrong tree? Would a constant voltage driver be more suitable for a single PCB? Also can anyone offer any advice on heatsink solutions?
Many thanks,

[unkle_psycho]

The ELG drivers are great bang for your buck, if you have 240w AC.

Your idea of having one dual strip is not bad at all. The F-series still is one of the more efficient lines, although if efficiency is a primary concern, it's already lost the top spot a while back.

Digikey just got the new product lines from seoul semi conductor, for efficiency, and especially warm tones they are quite a bit ahead. Seouls 3000k HE-line puts out 195lm/w, I think Samsung would be below 170lm/w @3000k. There is a thread in the mid-power section where you can compare the Seoul product lines, and there are many 560mm models.

Samsungs H-influx line is just a little more efficient then the F-series, but it has an aluminum pcb, so better heat dissipation. This only matters if you drive hard, but that seems to be your intention.

One last thing. A single strip should be fine to light your space, but if I had a small space like that I would probably use 2-4 strips and gain 10-15cm of vertical space because it would create a more even spread at close distance.
I would probably also add soft strips to the sides, to use the entire vertical space. That way I could aim for 1m colas and not have to worry about varieties that create a thick canopy blocking light.

[hcf2012]

Thanks for the info on Seoul PCBs. I will look into those. You are right that it is cannabis cultivation that brought me here in the first place. But I was walking through the fruit and veg department in my local supermarket the other day, and i noticed that about 2/3rds to 3/4s is grown outside the UK. So, I wanted to try and find out if I could grow some of this produce indoors for cheaper than it costs the supermarket to import. Obviously not avocado or olives, but may be berries, melons, cucumbers? These crops are entirely weather dependent, so UK market gardens won't take them on. If I can, then I can look at scaling up, or just selling locally. If I can't, then I have a new grow space for weed, with a kick-ass light.

[unkle_psycho]

I think there is potential there.

Most varieties sold in the supermarket are selected for looks and resistance to time and shelving. I've never seen a strawberry that gets more then 2/5 for taste in our supermarkets. If your in a big city you can get premium money by growing specialist plants for restaurants.

So its not a huge laboratory your creating there, but getting started is the important part.

[hcf2012]

I absolutely agree with your point on taste. I am in my 6th decade and consider myself blessed to have grown up in a house with a big garden. My dad experimented with growing strawberries. I have never tasted a nicer strawberry than those that my dad grew. They were tiny - thumbnail sized, at best. No supermarket would even give them a sniff!!!
Growing to order for local restaurants and retailers would be a dream outcome, for sure. I just need some hard data to figure out if it is economically viable to take on what must be HUGE market gardens in Southern Europe, South America and Africa.
Note to self: learn to walk before you attempt to run.

[unkle_psycho]

There was a Swedish guy here who planned to sell basil to local restaurants. Once he was up and running he started his marketing tour. The first restaurant took everything he could produce.

Suppliers to restaurants generally charge rather high, and restaurant keepers need them to keep menus consistent. If you do some research, have a kinda catalogue and produce speciality items on order, the chefs will kinda flip out, because they cant access such offers under normal conditions.

So you might want to do a little research on varieties to identify stuff that has a really high value for a chef. Restaurant food is quite disconnected from ingredient costs. Microgreens for decorating dishes is a great example. Edible flowers, stuff to decorate desserts etc.

[hcf2012]

unkle_pscho I have had a look on digikey for the Seoul HE but I can't find them. Do you have a part number?

The ELG drivers are great bang for your buck, if you have 240w AC.

Your idea of having one dual strip is not bad at all. The F-series still is one of the more efficient lines, although if efficiency is a primary concern, it's already lost the top spot a while back.

Digikey just got the new product lines from seoul semi conductor, for efficiency, and especially warm tones they are quite a bit ahead. Seouls 3000k HE-line puts out 195lm/w, I think Samsung would be below 170lm/w @3000k. There is a thread in the mid-power section where you can compare the Seoul product lines, and there are many 560mm models.

Samsungs H-influx line is just a little more efficient then the F-series, but it has an aluminum pcb, so better heat dissipation. This only matters if you drive hard, but that seems to be your intention.

One last thing. A single strip should be fine to light your space, but if I had a small space like that I would probably use 2-4 strips and gain 10-15cm of vertical space because it would create a more even spread at close distance.
I would probably also add soft strips to the sides, to use the entire vertical space. That way I could aim for 1m colas and not have to worry about varieties that create a thick canopy blocking light.

[unkle_psycho]

All the following lines use the same diodes, but the advised current will end in different efficiencies. You can decide to run them softer or harder, I look at these through diode count, rather then advised power levels.

HE-line:
https://www.digikey.fi/products/en/opto ... ageSize=25

SE-line:
https://www.digikey.fi/products/en/opto ... ageSize=25

Indistrial-line
https://www.digikey.fi/products/en/opto ... ageSize=25

At the same release they also put out the value line, which uses different diodes:
Value-line:
https://www.digikey.fi/products/en/opto ... ageSize=25

You can compare the first three lines in the Seoul Semiconductor thread, I mapped out how many diodes you get per Euro depending on model and purchasing volume.

[Rocket Soul]

Those seoul chips look nice but afaiu theyre 195lum/w is rated at 6w per strip, or I: 195mA.
To have to wire 50 of those per meter is an issue for me. There are strips that have better value and more practical at the same time.

[unkle_psycho]

Those seoul chips look nice but afaiu theyre 195lum/w is rated at 6w per strip, or I: 195mA.
To have to wire 50 of those per meter is an issue for me. There are strips that have better value and more practical at the same time.

The 4 footer in the HE line hits 20w @ 195lm/w

Perhaps the industrial line is a little more practical, 190lm/w and over 20w in a 2 foot strip