do you guys know how many lumens a bedside tablelamp should have for bedtime book reading?
I’d say about an adjustable 1000 lumens of very warm(<2500k) light honestly.
There are times when I want barely any light while reading, and other times where I just want full power to be able to read with maximum proficiency 
Color temperature and tint is what matters the most IMO.
<2500k seems a bit extreme for reading to me. I wonder if it is possible for extremely warm tint on yellowish paper to create contrast issues and headaches.
Depends on where you will be shining the light, if on the page directly, then you do not need many, under 100lm would allow you to see the text pretty good. If you are doing ceiling bounce, then 1000lm prbly would be a good start.
I do have the desk lamp on a bedsite table on my left at the same height of my head.
The distance between the light point and the book is around 60/80 cm.
At the moment I do have a lightbulb, 2500k, 600lm and sometimes I have issues with dry eyes,
Depends on how it’s mounted and the lamp design. They make book mounted reading lamps that are fine with only a couple of lumens. If you’re trying to ceiling bounce enough light to read anywhere in the room you probably need anywhere from a few hundred to a few thousand depending on the size of the room.
Either way, for reading I want a nice neutral 4k-5k tint and decent CRI.
Betdime :person_facepalming:
That sounds good and correct to me. Adjustable/ramping 1000 lm would give options for different situations.
No blue light allowed. It’ll keep you up. :sunglasses:
How about a neck light my friend? I always keep mine on warm/low brightness at night.
How about a book light?
This one appeals to me, though I don't own it...
It's nice to see you, lillo9546!
I find that my E02 II, 4000K SST20, clipped to my shirt, at the highest moonlight, 5 Lumen is quite comfortable for reading. Any kind of lamp would need MUCH more.
Costco sells some bulbs you can adjust from warm to cool and dim to bright. Controlled by an app. That way you can dial it to your sweet spot. They’re about $20 for two.
There are also variable tint lights, such as Emisar. I’ve been meaning to get one myself
I have a dual channel Emisar in fact with deep red or 2000K. Beautiful soft golden light for inside
Sometimes I use my Sofirn C01 at arms length. The 5 lumens of floody light, warm, but not too warm, is just perfect. That is with a direction light, however, not a table lamp.
I currently have a 300 lumen, 2000K bulb in my bedside lamp to try out for no particular reason except Home Depot had a bunch of Philips decorative bulbs on closeout for $1, and I was curious.
I would say it is warmer than ideal except for a pure relaxing space, but I can read fine with it.
Osram yellow is nice too. I think it’s about 1800K
The regular 60 watt lightbulb is about 800 lumens .
i'm going to agree with I'mlucky13 and say you can easily read with a well placed 7 and a lightly diffused 20 lumens .
I use a BLF Q8 hanging by paracord off the curtain rod behind my head and am running less than 25 lumens . Personally I'd prefer a bit warmer tint like 3500k instead of 5000K.
the book holder is way more complicated than the lighting .. a (gooseneck cellphone holder and clip) highwire act lashed to the bedpost .
I keep thinking of acrylic with a small lip to hold the book open face down and reading thru it from the underside
I have a Tolino ebook-reader with back-light. It takes some ambient light to reduce contrast, so I have one of those 3d-printed “moon lights”, adjusted to an amber like color at approx. 20 lumens, dunno exactly. Perfect solution for me.
i would say 10 lumens —if they all hit the book page
40 watt incandescent makes maybe 400 lumens
at 2 feet from the book, a sphere has 50.2 square feet
say the book has 1 square foot
so you need 400 x 1 / 50 = about 8 lumens that hit the book!!
you are welcome!
[i didn;t know either]