If you're replying to someone's comment and joining a discussion you should at least make an effort to read all of the comments.
I have already addressed my usage of Kobo's frontlight in a previos answer to @Quoth.
As previously stated:
Quote:
Originally Posted by shamanNS
Yeah I forgotten to comment on the frontlight usage: arround 60% of my total reading time I read with fronthlight turned off (I prefer how the screeen looks when it reflects the light from my floor lamp that I have beside my bad), the rest of the time when I'm using the frontlight I use it turned on to 18-25% intensity.
I never read any of my reader with room light turned off (as in total darkness) and reader's frontlight being the only light source... to me that looks and feels to much like reading on a tablet and I could never get used to that.
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So, most of the time if I'm using the frontlight that means that I'm lying horizontaly (on my side) in my bed while I'm reading and then there isn't enough light from the floor lamp reflected of the reader's screen so I'm lazy and instead of getting up and messing with height of the lamp I just turn on and turn up Kobo frontlight to add make the screen bright enough.
The same thing I also have always done on my Kindle (the difference being that Kindle's light is less intense and there I usually put it at 15 out of 24 max, plus 20 out of 24 on the warm light slider.
And on the Kobo my preferred combo when "giving a helping hand to the floor lamp" is 18-24% & 8 out of 10 for the warm light.
Like I said: I don't read in dark rooms. Obviously if I did that those values for the reader frontlight would be waaaaaaay to strong. But when you combine room / ambient lights with reader's built-in frontlights using lower values gets you the same effect as if it it was turned off completely
In short : if I'm sitting neer my floor lamp I don't use Kobo's or Kindle's built-in light . If I'm lying down I use both the floor lamp and built-in frontlights of the reading device.
And I do the same regardless of using Kindle or a Kobo. And using Kindle that way doesn't prevent it from letting me read at least 1200 screens before needing to recharge. Kobo under the same conditions last 450-550 screen.
Everything but the device itself is the same: same font, same font size, same version of KOReader, same book, same epub file, same bed, same reading posture..
Kobo's non-flush screen does indeed reflect slightly more ambient light / light from the floor lamp in my room when compared to Kindle PW5's "flush" screen.
And 0.2" difference between those 2 screens can't account for the battery life difference.