easy way to remember series: "positive in, negative out, positive in, negative out".
like in life

the bridgelux eb gen 3 slim have 19V. perfect for used laptop chargers.
https://www.digikey.ch/en/products/deta ... 3/10279842

wanted to buy some of these. but digikey replied: "Part number BXEB-L1190U-30G3000-C-C3 is a non stocking item for Digi-Key. Non stocking means we no longer house this part here at Digi-Key. We can special order this part for you though there is a minimum order requirement of 180 pieces. Lead time i...

the new Vesta gen3 seems to be twice as expensive but the only difference seems to be higher CRI value? https://www.digikey.com/en/products/filter/led-lighting-cobs-engines-modules-strips/111?s=N4IgjCBcoLQCxVAYygMwIYBsDOBTANCAPZQDaIAHAGxgDMFIAuoQA4AuUIIAvr0A digikey comparison: Vesta vs Vesta Gen3.j...

I understand how blurple lights can have high PPF with very few lumens, but if we are comparing two LED's with the same macadam's 3-step CCT, and CRI, wouldn't the lumen : PPF ratio remain constant and thus have the same conversion factor? In your example (vesta vs 564) I just don't understand how ...

Vesta is still ahead in lumens/dollar but with a claimed efficiency of ~130lm/w it's not a small difference. yeah lumen per watt of vesta are lower than cri80 sammies. however lumen only tell half the story. in terms of PPF/W they are more equally matched. i posted this comparison at RIU: "if you r...

Good work! well the drivers only deliver 50% max like this, wouldn't they? still better to use 2 potentiometers. Just got a 200watt COB fixture (20x 20watt cobs, run at half power), and it puts out a fair amount of heat, even at 160lm/w. Thinking anything I can do to up the efficiency will make for...

I've ripped off the plastic covers from all the quick connectors, revealing a kind of metal cage that holds the wires very well, but that its easier to release cables from when necessary :D oh nice tip thanks. tried that as well. now they really are releasing the cable when you push them. unfortuna...

unkle_psycho wrote: ↑

Thu Oct 25, 2018 9:23 am

You can see the number code on the bottom left of the strip 280x31 - 3s16px2

the cardboard build
btw what wire is this and how did it fit inside these connectors?

what are your takes on these? they give a shit ton of lumen per dollar at high efficiency :?: UPDATE: non-stock item. 1050pcs minimum order quantity :| digikey CRI90 : https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SPHWW1HDNC27YHU3B3/SPHWW1HDNC27YHU3B3-ND/8536341 digikey CRI80 :...