Samsung F strips - best bang for buck?

[Geodawg]

https://ledgardener.com/diy-led-strip-b ... bridgelux/

Hi all, came from this amazing post. Been using the following in my setup for the past few months and it's working great. Looking to purchase more and wanted to know if they're still the best thing you can get for the price.
https://www.digikey.com/products/en?key ... 8VZ91B20WW

The 3k strips can be had for $30 each on arrow and the heatsinks are $16 each from heatsinkusa.

I am comparing the setup to the following options
QB288 v1 (same amount of led and exact same type) can be had for $45
https://horticulturelightinggroup.com/c ... ntum-board
with the heatsink for $66 but sold out
https://horticulturelightinggroup.com/c ... ngle-combo

The chilledled has around 240 of the LM301B samsung diodes but it costs $55
https://www.rapidled.com/chilled-logic-puck-v3/
heatsink $19
https://www.rapidled.com/140mm-pin-heatsink/

[unkle_psycho]

https://ledgardener.com/diy-led-strip-b ... bridgelux/

Hi all, came from this amazing post. Been using the following in my setup for the past few months and it's working great. Looking to purchase more and wanted to know if they're still the best thing you can get for the price.
https://www.digikey.com/products/en?key ... 8VZ91B20WW

The 3k strips can be had for $30 each on arrow and the heatsinks are $16 each from heatsinkusa.

I am comparing the setup to the following options
QB288 v1 (same amount of led and exact same type) can be had for $45
https://horticulturelightinggroup.com/c ... ntum-board
with the heatsink for $66 but sold out
https://horticulturelightinggroup.com/c ... ngle-combo

The chilledled has around 240 of the LM301B samsung diodes but it costs $55
https://www.rapidled.com/chilled-logic-puck-v3/
heatsink $19
https://www.rapidled.com/140mm-pin-heatsink/

The samsung strips get heavy progressive pricing on digikey, which definatly makes them a bang for buck solution for larger purchases.
They are really high power boards, so definatly the kind of board which would benefit from the better heat characteristics of the newer H-influx strips, but never heared someone with good sinks complain, perhaps its no big deal.

Just as an example I was looking at the 1120mm strip from Seouls industrial line, over 50w nominal with a little better efficiency for 20$ a piece... two of them would pretty much equal the F-series in power, beat it in efficiency, and price. Not much difference though.

Cutter is taking preorders for their 3.3umol light board, around 70$ for a 130w board, not hte cheapest, but quite a bargain for what it is.

[Geodawg]

Appreciate the reply Unkie. Are you talking about this influx series that has the 301B diodes?
https://www.digikey.com/catalog/en/part ... endor=1510

They do have the higher lumens/watt but I can't find the 1120mm strips on digikey.

[ATPinMotion]

Ya, Unkie is the man!

Bridgelux EB gen 2 works out a little better in flux/dollar than the Sammie's until you're buying 100+ units.

[Geodawg]

Looked on the samsung site for these h influx. looks like the only come in the 560mm or 280mm
https://www.samsung.com/led/lighting/le ... /h-influx/

178lumens/watt @ 3k
https://www.digikey.com/product-detail/ ... ND/8536581
1 31.76
10 28.07
25 24.52
120 21.42
360 20.31

190lumens/watt @ 4k (low stock, people are most likely buying up a lot of these for the efficiency)
https://www.digikey.com/product-detail/ ... ND/8536569
1 33.28
10 29.40
25 25.69
120 22.44
360 21.28


The F strips which are 1120mm 168lumens/watt. 94% comparing to the 3k and 88% to the 4k

https://www.digikey.com/products/en?key ... 8VZ91B20WW
1 45.96
10 39.12
25 35.35
100 33.58
250 31.34

2 of the H influx ($50 2 strips @25qty) would be 1 of the F series ($35 @25qty). It's definitely bang for the buck when you compare 3k to 3k. So I've decided to go ahead and stick to the F series until they can make a 1120mm version of the 301B diodes with decent price.

[unkle_psycho]

Yeah, I never got to use sammies, just know what I read. I understood that the lm561c and the lm301b have almost similar efficiency, the lm561c just got clocked at a higher current. This way sammie got to act like there was a bump in efficiency, when there hardly was one.

I always try to look at the charts on efficiency and current, and I can never make anything out of them. The lines always look too liner.

Anyways I'm looking at the Seoul strips cause they look so efficient at warm color temps. Their efficiencies also seem to really depend on running soft too, should compare sometimes. Waiting to see if a friends friend does a group purchase on the 4foot HE line or one of the industrial lines, so we could get a good price.

[Baudelaire]

Look at SolStix, 50w of Samsung LM561C - 96 diodes in 2700, 3500 and 5000K - with fitted heatsinks for $30. Also a 144-chip, 80w dual-band (2700/5700K) 80w strip with sinks for $45. US-based so no Trump Tax, and free shipping.