MrTwist1
Well-Known Member
Ahhh Ok, I did not even consider that. I have only ever run LEDs in series so far.
samsung hard strips
- Thread starter caretak3r
- Start date
caretak3r
Well-Known Member
My apologies, I guess I should have spelled it out. Someone else PM'd me and had attached 1 L09 to 1 HLG-185H-48A. I believe he inadvertently ran 1 strip @ 4A which isn't advisable (it was a short test I think). I'd run 4X L09 per hlg-185h-48a or 16 (4s4p) of the s02.
PSUAGRO.
Well-Known Member
your also paying for ul/etl approval on the nextlight mini.............you do realize that if your diy project(s) fail/catch fire, damages aren't covered by your homeowner's/business insurance right? some will pay extra for peace of mind.............if it's an illegal grow none of this matters anyway..........lol@Chronikool,
If you want to build your own nextlight mini 150 type light, check out the pricing above and pair it with one of these:
http://www.bgmicro.com/hlg-185h-48a-led-series-power-supply-48v-3-9a-constant-current-high-efficiency-by-meanwell.aspx
meanwell hlg-185h-48a for only $23.
let's say you grab 4X the influx l09s @ 17.17 that's only $68, plus $4 shipping. Add the Driver and you're at roughly $100 for lights and drivers. Sounds much more appealing than $600 for a mini
caretak3r
Well-Known Member
I'm not knocking a good product. I'm delighted to see that quality samsung SMDs can grow nice plants and NextLight proved that out. I understand certification costs money and time. I also have an automatic temperature-based fire extinguisher in my cab -- So I guess you can add $50 to the cost if you want the same assurances
PSUAGRO.
Well-Known Member
me too
...................but my pressure gauge hasn't moved in 5 +yrs, normal?
caretak3r
Well-Known Member
@robincnn uses 48V laptop power supplies (constant voltage ac/dc adapters). I've always read that is bad due to possibility of thermal runaway, but I guess you can mitigate that by buying a power supply that is not over powered (max output can't damage the lights). He's got more experience in this area.
caretak3r
Well-Known Member
which product?
NM - the old BML product line used osrams. Not sure about the new ones.
Last edited:
the new ones, fluence ... not bml
caretak3r
Well-Known Member
A quick update - I'm pleasantly surprised so far. I attached a single 33W strip to a 20x14 baking sheet. I dialed in voltage/amperage on a dc-dc buck to get 34W at the wall, let it run for 10 minutes, took temperature readings on black tape on the rear side of the sheet. Ambient was 76F, right behind the led strip was only 10 degrees higher at 86F. Taking a reading about 2 inches to the side of the strip was back to ambient. So this strip at rated/nominal current is dissipating heat very well. I will attach my second strip and take more readings, but I'm kind of in love with this setup if it remains so easy to keep things cool. Props to nextlight and those like @robincnn that blazed the path on this one.
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Chronikool
Well-Known Member
OneHitDone
Well-Known Member
So your saying Nextlight is using Samsung Strips and not Cree diodes?
caretak3r
Well-Known Member
samsung lm561b
OneHitDone
Well-Known Member
Hum, it looks like you would be in that over $300 for 16 of the strips? + Drivers + case/frame of some sort?
Why are people complaining about the price tag on that light?
caretak3r
Well-Known Member
Ok, let's do some maths....
the 16 strips i referenced were different -- they are influx s02s, each with 24 lm301a (different higher power led), running 12.1V and 16W. I mentioned using 16 in a 4p4s config to fill up the available power from a HLG-185h-48a (185W driver). In this case, you are well over powering the nextlight mini 150w. The influx s02 costs $4.88 each, let's round to $5. $5x 16 = $80 plus $23 for the discounted HLG from bgmicro only brings you a hair over $100. A large 18x26 baking sheet = $15..... so this is apples to oranges because of different diodes, but it is very similar.
My testing was done with a 33W strip using 72 lm561b (same as nextlight). To match nextlight power, I only need 5 of them but I'd order 6 so I can do 2P to hit my 48V from the driver. So, 6 X $11 = $66 plus the $23 driver and you are under $100 still.
the nextlight mini is 150W for $600. I'm not hating on them, they are just making a healthy profit as far as I can tell (again I concede testing and certification and warranty counts and costs). I like DIY and I like to know what the basic parts cost.
the 16 strips i referenced were different -- they are influx s02s, each with 24 lm301a (different higher power led), running 12.1V and 16W. I mentioned using 16 in a 4p4s config to fill up the available power from a HLG-185h-48a (185W driver). In this case, you are well over powering the nextlight mini 150w. The influx s02 costs $4.88 each, let's round to $5. $5x 16 = $80 plus $23 for the discounted HLG from bgmicro only brings you a hair over $100. A large 18x26 baking sheet = $15..... so this is apples to oranges because of different diodes, but it is very similar.
My testing was done with a 33W strip using 72 lm561b (same as nextlight). To match nextlight power, I only need 5 of them but I'd order 6 so I can do 2P to hit my 48V from the driver. So, 6 X $11 = $66 plus the $23 driver and you are under $100 still.
the nextlight mini is 150W for $600. I'm not hating on them, they are just making a healthy profit as far as I can tell (again I concede testing and certification and warranty counts and costs). I like DIY and I like to know what the basic parts cost.
PSUAGRO.
Well-Known Member
Last I heard it's osram, Phillips, Samsung.
OneHitDone
Well-Known Member
Thanks, for clarifying. When I searched that lm561B all I saw was individual diodes. are those available already installed on strips?
I am thinking lettuce growing machine here
Probably don't need the diodes packed so tightly or as much wattage as what you are putting together
caretak3r
Well-Known Member
Yes all of the links in this thread are for strips.Thanks, for clarifying. When I searched that lm561B all I saw was individual diodes. are those available already installed on strips?
I am thinking lettuce growing machine here
Probably don't need the diodes packed so tightly or as much wattage as what you are putting together
data sheet for influx series (I don't have these yet but am pretty confident they will perform very similarly in terms of heat dissipation):
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_inFlux_Linear_Rev.1.0.pdf