Hi guys, just wondering which is better to buy, the CXB3070 or the CXB3590? looking for a 5 cob setup for a 3x3. Is there a better COB available than the ones I mentioned?
Thanks. also which kelvin would be best? thanks
Look at their new binnings. There is a really good 3.000°k/CRI92 CB bin or, if you want still use 3.500°k/CRI80 for some reason, there is a DB bin ... Also new Vero29gen.7 is really interesting.. 165lm/w at their nominal cuurent and there are 36, 50 and 70v versions (B, C, D). The 70v Vero29 in CRI90 seems a good comparision to the new CRI90/CB bin!
Also Citizen 1825 gen.6 and Luminus XNOVA CXM32 are in the same range. But you pay allways a few bucks more if you choose Cree, the other competitors are 10-15bucks less.
They all have their own benefits, so the Vero's and Citi's performs better at higher currents(>1A) while the new cree bins are still performs best at lower currents(<1A).
But those are the flagship chips and therefor more expensive. You can also go in the higher midrange and choose Luminus CXM22gen.3 or Citizen's CLU048-1818C4 gen.6. They are comparable to the last gen. Vero's/Cree's but for only 19$US.
Edit:
And I'll not forget to mention new Samsung midpower 561c diodes. You will find them on QuantumBoards and also on Samsung H-Series strips(gen.3), 179lm/w/3000°k/CRI80 is better as the most COB's. They seems also a bit pricey, a Quantumboard costs 75$, but they pay for them self in a short time and really easy to handle.