easy way to remember series: "positive in, negative out, positive in, negative out".
like in life
Search found 182 matches
- Tue May 10, 2022 10:20 am
- Forum: General
- Topic: Serious N00b question - Series or Parallel?
- Replies: 3
- Views: 3516
- Tue May 10, 2022 10:17 am
- Forum: General
- Topic: Repurposing Laptop/Electronics power supplies
- Replies: 27
- Views: 13524
Re: Repurposing Laptop/Electronics power supplies
the bridgelux eb gen 3 slim have 19V. perfect for used laptop chargers.
https://www.digikey.ch/en/products/deta ... 3/10279842
https://www.digikey.ch/en/products/deta ... 3/10279842
- Sun Apr 03, 2022 7:43 pm
- Forum: Strips
- Topic: Bridgelux gen3 slim CRI90 test results
- Replies: 19
- Views: 10057
Re: Bridgelux gen3 slim CRI90 test results
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...
- Sun Dec 27, 2020 12:02 pm
- Forum: General
- Topic: new bridgelux model? VESTA® 90CRI, 130lm/W
- Replies: 145
- Views: 27402
Re: new bridgelux model? VESTA® 90CRI, 130lm/W
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...
- Fri Jan 18, 2019 8:21 pm
- Forum: General Control & Automation
- Topic: color temperature control
- Replies: 15
- Views: 3707
Re: color temperature control
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 ...
- Fri Jan 11, 2019 4:17 pm
- Forum: General Control & Automation
- Topic: color temperature control
- Replies: 15
- Views: 3707
Re: color temperature control
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...
- Tue Jan 08, 2019 12:42 pm
- Forum: General Control & Automation
- Topic: color temperature control
- Replies: 15
- Views: 3707
Re: color temperature control
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...
- Sun Jan 06, 2019 3:07 pm
- Forum: Strips
- Topic: Diode Count On Bridgelux strips (BXEB-L1120Z-35E4000-C-B3)
- Replies: 7
- Views: 1644
Re: Diode Count On Bridgelux strips (BXEB-L1120Z-35E4000-C-B3)
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...
- Sun Jan 06, 2019 12:08 pm
- Forum: Strips
- Topic: Diode Count On Bridgelux strips (BXEB-L1120Z-35E4000-C-B3)
- Replies: 7
- Views: 1644
Re: Diode Count On Bridgelux strips (BXEB-L1120Z-35E4000-C-B3)
the cardboard buildunkle_psycho wrote: ↑Thu Oct 25, 2018 9:23 amYou can see the number code on the bottom left of the strip 280x31 - 3s16px2
btw what wire is this and how did it fit inside these connectors?
- Sat Jan 05, 2019 4:11 pm
- Forum: COBs & Other LEDs
- Topic: samsung COB LC026B opinions?
- Replies: 5
- Views: 1321
samsung COB LC026B opinions?
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 :...