The most energy efficient kind of light emitting semiconductor junction is the one that emits blue light.
This being a battery bank and assuming that 2x7 segment LED display is always ON, maybe the choice of color for it was driven by that (and price, since that numerical display is far cheaper than even lower power solutions like e-ink) above usability.
Blue LEDs are great for when you need something blue in particular, but the color is piercing and way too bright. Then they are used as the default without any consideration for any other color.
They are shitty in how they are used, rather than their individual abilities and functions.
The brightness is too bright, not the color. The brightness is always a choice by the manufacturer they could easily make it dimmer using the exact same components.
That doesn’t change the fact they are used in situations where they shouldn’t. I don’t like being blinded by a bright piercing blue light all the time.
All the “whites” (warm white, natural white, cold white and so on) on led lights are combinations of red + blue light emitting junctions covered in a phosporous mask to “smooth” the spectrum distribution of the resulting light (otherwise the light would be purelly a peak at a very specific wavelength on the red part of the spectrum and a similar peak on the blue part of the spectrum).
This photo is a perfect example of why blue LEDs are shitty.
The most energy efficient kind of light emitting semiconductor junction is the one that emits blue light.
This being a battery bank and assuming that 2x7 segment LED display is always ON, maybe the choice of color for it was driven by that (and price, since that numerical display is far cheaper than even lower power solutions like e-ink) above usability.
Exactly, blue LEDs are cheaper. So, shove them in everything, even if another color or no light at all makes more sense.
Blue LEDs were a technological breakthrough that took decades of work to create and enabled pretty much all modern tech.
Blue LEDs are great for when you need something blue in particular, but the color is piercing and way too bright. Then they are used as the default without any consideration for any other color.
They are shitty in how they are used, rather than their individual abilities and functions.
The brightness is too bright, not the color. The brightness is always a choice by the manufacturer they could easily make it dimmer using the exact same components.
Without blue LEDs we wouldn’t have LED lighting
That doesn’t change the fact they are used in situations where they shouldn’t. I don’t like being blinded by a bright piercing blue light all the time.
White LED is blue LED with a facemask
All the “whites” (warm white, natural white, cold white and so on) on led lights are combinations of red + blue light emitting junctions covered in a phosporous mask to “smooth” the spectrum distribution of the resulting light (otherwise the light would be purelly a peak at a very specific wavelength on the red part of the spectrum and a similar peak on the blue part of the spectrum).