Oh damn, all of their carclo optics are out of stock. They are the only reasonable source of these optics in the US, I wonder if they will restock them.
(EDIT: they don’t do free shipping anymore! Also not all are out of stock, some are still available.)
Glad that the diffusion film does the trick! With ultra-high-CRI lights I would not tint mix or overdrive them, both of them compromise CRI and the ability to see colors objectively. If I wanted a really rosy tint I’d just get 519As, which have more output anyways.
As tempting as it would be to try the 10509 optics that I can get from MTN, I’ve decided to keep my set-up as is.
Here’s my rationale:
I don’t see any tint shift with them. Even when I rotate the flashlights on a white wall, there is no noticeable change that I can see.
I like that they have a distinct hotspot and I’m not sure if that would be the case with the 10509 optic.
They have older 6x7135 12 mode Convoy drivers that I’ve added bleeder resistors to in order to accommodate lighted switches. I’m afraid that the firmware could become compromised if I removed a 7135 chip or 2.
I’ve decided to program them to mode 8 in order to reduce the current by 50% just to be safe. This should then be around 0.375A per LED which is still plenty bright.
Yeah, it sucks they don’t ship for free anymore. $3.99 plus the cost of the optics is still cheaper than Digikey, Mouser or Mtnelectronics though.
Both very good points. The 3V SunLike only make ~20lm at the normal drive current, which is a bit low even for three of them. I was pretty much just playing around with mixing different temps. My preferred CCT is ~4500K so I also tried a mix of 2 4000K and 1 5000K that came out pretty much perfectly neutral and ~4200K. I’ll probably settle on a mix of 2 5000K and 1 4000K.
Probably not super favorably. I’ve got SunLike in 5700K that ended up closer to 6000K in my optical setup, and the color rendering (particularly cyans/greens, and also reds in contrast) is miles ahead of any blue-pumped emitter I’ve ever seen. All colors look crystal clear, while 519A puts a weird blue/grey cast on everything. The MoonLed is still blue-pumped and exhibits a cyan dip, even though to a lesser extent compared to most blue-pumped LEDs like 519A.
From digikey.com . it is free shipping to EU if you order electronic parts costing $50.00 or more. they will charge $18.00 shipping if your order total is below $50.
the 6500K and 5700K they have in stock have negative dUV or “rosy tint”. but since this is a LED without cyan dip, negative dUV would not show as “pink tint” but rather a “red orange” tint for Sunlike 5700K and “yellow green” tint for Sunlike 6500K.
too bad no Sunlike 6500K there. i’m looking for another seller of Sunlike 6500K hoping to get a positive dUV tint. the Sunlike 6500K in digikey are negative dUV.
I am asking myself if these Sunlike LEDs from Aliexpress are legit. He gives at least some excerpts of the datasheet and some spectral data.
Maybe I am ordering some (5000 K I think)
Seem pretty legit to me. They are visually identical to tested samples by djozz and maukka, and are indeed violet-pumped as I can confirm with my spectroscope.
I do have the suspicion that the 5700K is closer to 6000K irl, but don’t have the equipment to test. The duv seems to be completely neutral in all directions, possibly on the positive side–these LEDs seems to have no angular tint shift at all when used in a mule. It’s a bit greener than some blue-pumped LEDs due to the reduced blue and increased cyan, but really makes colors look natural.
my 5700K Sunlike is actually 6300K at -0.0058 dUV so it looks yellow-orange instead of bluish green.
my 6500K Sunlike is actually 7400K at around -0.005 to -0.006 dUV giving it a yellowi-green tint. The Sunlike datasheet say that 6500K Sunlight can be as high as 7500K
