I just got my Jetusolis 5000K and Jetu E21A 4500K. If anyone is wondering, I placed the order on Jan 22, it shipped Feb 3 and I got it in the USA on Feb 14, so right about 3 weeks from the date of order, which is about par for ePacket shipping in my experience.
The Jetusolis 5000K puts out a really nice, pure white, diffuse beam. Shining it around the house in the dark and outside at night, I donāt notice any colors that are shifted in tint or darker than they should be. By itself, it has no tint and whites appear pure white, but in comparison to a warmer light, it appears just slightly cool. It would be perfect for any kind of medical uses. I find it to be a really pleasant tint of light, especially in comparison to low CRI 5000K and cooler whites. It reminds me of my Astrolux S43 with Nichia 219C LEDs. The S43, which I previously considered to have the purest white, most diffuse beam in my collection, is slightly yellow by comparison and shows whites from freshly bleached laundry as slightly off-white, whereas the Jetusolis 5000K shows them as the pure white that they appear in sunlight. Blues and purples are brighter also with the Jetusolis 5000K than the S43.
Iām still trying to decide between the 20 degree TIR and the 30 degree TIR for the E21A. I like diffuse beams for these single AAA flashlights so I can have a lot of light working up close and no hot spot, but the 20 degree TIR is fairly diffuse (albeit less than the 30 degree), has noticeably more throw and the hot spot goes away at medium brightness. The E21A 4500K has great color rendering, but shows whites as just a shade pink, which you donāt need to compare it to a cooler light to see. The pink tint makes skin tones really pop, though, which is a cool, pleasant effect. I think Iām starting to understand why so many people seem to go nuts for pink-tinted 4500K Nicha LEDs, although I am still deciding whether I like the tint or not and how much. At the very least, itās a unique flashlight to have in my collection.
To be honest, I ordered both of these as more of a curiosity. I donāt really consider myself a tint snob and prior to a few months ago, I was uninitiated in high CRI vs low CRI flashaholism. Hence, I ordered two with different emitters, unsure if Iād like one, both or neither. These flashlights are both good additions to my collection, and if I have one regret, itās that I didnāt order a few bare LEDs at the same time I bought these for if I do eventually learn how to modify larger flashlights.