I guess I’ve fixed all those error entries in the sheet. Do you think it’s OK to end the GB by 180530? Or should we extend it by one more week?
600-700pcs of those 219Bs should be enough.
Oh, goodness, obsoleted:( I’ll definitely place an order, once I figure it out.
Could I order a 4XP board and have it populated with two each of the SW40 and SW45?
These 219B (and 219C it seems) all tend to have Vf very close to 2.75 @ 350mA. (not that I’ll be using them at that current, I just still test there ever since the Luxeon 1 days!)
That would totally solve any worries about the SW45 being too lavender and the SW40 slightly too yellowish. I’ve noticed both these tints myself. They don’t really bother me but a mixed board would be another very nice option!
congrats on another 9080 CCT option… hard to go wrong with more great choices
I think Im biased to SW40’s warmer CCT because most of my use is indoors at 0.2 to 50 lumens, and my house lights are 3000k incan
For higher lumen levels that are used for longer range, the SW 45 is probably a better match for the application, especially when ambient light is around 5000k
I also like CCT as low as 3000k, when in full darkness and at 5 lumens or less… Clemences E21A 2000k are on my interest list as well.
A Selection of Different LEDs is good to have for different applications and times of day
Im super grateful to Clemence for making the 219b 9080 experience possible for me.
Yes I agree. At night, warmer tints are more pleasing. One possible reason for this, at high noon the sun is more blue, but gets warmer as it goes down, leaving our sight more calibrated to the warmer side of the spectrum.
I wonder what the CCT of a campfire is, probably between 2 and 3k.
Thanks!
That is the best and shortest explanation I have ever heard to address differences in CCT preferences.
Makes total sense, as ambient white balance gets warmer and less bright, flashlight CCT preference also gets warmer and less bright.
I think there is also more green during sunlight. I dont notice the green tint of some of my cooler lights during the day. The green gets more obvious after dark, when my brains CCT balance is warmer.
Although I personally find high CRI in < 3500K doesn’t do much in differentiate between colors, no low CRI < 3500K can mimic campfire/candle light unless they have very high R9 value.
CRI 8000 - 9000 3000K looks like carburizing acetylene flame (deep yellow)
CRI 9050 3000K looks like looks like kerosene storm lantern (orange)
CRI 9080 2000K looks like wood fire/candle/match (almost amber)