The white glow stick. You can easily recognize color under this glow stick. But the brightness is really bad. The spectrometer didn't get enough light, so you can see the sub 400nm band is really high (an indicator of noise).
Good for recognizing color, but don't recommend for emergency lighting.
Despite I haven't tested the blue one using the spectrometer, based on my experience (and the fact that blue one has the similar initial brightness, advertised by seller), I think the best one is the green one, it's bright, an with some effort you can distinguish color. Then followed by the yellow one, it's not as bright as green for the 10h one, but if you can accept shorter duration, the 1hour one is really bright, although it's hard to distinguish blue and green. Then is white one, unless you really need to see different colors, otherwise don't use that for emergency lighting. It's dark and your color vision doesn't work until you zoom in very close (less than 10 cm).
The not recommended one is blue. It actually distracts your eyes since blue lights are high energy.
Start testing glow sticks. Today's two are identical in terms of light: 558nm ± 2nm. The 1 hour one is super bright but decayed super fast. It barely glows at 1 hour. But at the beginning, it measured 668 lx, reported by my phone, when placing the stick on the screen.
The 10 hours one is not that bright, but still good for reading. It feels much easier to see compared to the blue glow stick: the blue one is bright, but it makes my eyes exhausted. The yellow one is much better. Since human eyes are much more sensitive to green light, I would expect the green one to be the best. But I'm also curious about the white one.
And with the last two images, you can tell the lacking of blue makes the color very off. You can hardly see blue. I mean, that's expected, and I know this. But seeing with my own eyes is just amazing.
15 hours and still glowing. But at this time the light is super week, I don't think you can read with that. You can only tell something is glowing.
Praise the chemistry, again.
**I have a job now!**
I'm a Chinese shitizen, but I generally don't post in Chinese to avoid being suffering from other Chinese.
I'm physically a male, but I don't care how people think about my gender. I can be male, or female, or cat. But if you ask, I'd prefer to be referred to as male. Also, I support LGBT+ people, and I'm a copyleft. I don't think I'm too aggressive in arguing things, but sometimes I do. You should handle it with care.
I post about programming (most time is Java and Kotlin, unless I have a new love), and some random things I find interesting. I also post about my mental health, which is in a stable state of instability, thanks to my parents and Chinese society.
Anyway, if you want to follow me, I'm glad to see you. And, have a nice day.
Alt: @skyblond