How much light does it need to turn on? If it is away from a window and next to a book case, will it be on all day?
1503243
I'm not sure. I will say that mine are placed away from windows, but on cloudy days it's a little darker inside, so the lights will come on. I might start opening the window blinds just a little, so that this does not happen.
1503244
If it's in a shadow it will probably be on all day. It's led so it will still last a really long time even if it's running all day.
1503245
General light in a room is all it needs to power up. It doesn't need direct sunlight
1456523
Yes, there is a button to turn it on and a separate one for the light. You can leave it off if you choose too.
27215
not yes/no answer, maybe this will help. We have ~ 12' * 15' room and we turn all 3 lights on (~60W equivalent CFLs each) for best light. It is fairly good. With only 2 turned on, it is ok for socializing but not for good reading.
915859
The light should be on the inlet side and in the center of the duck back far enough so the light covers all of the colie, it should also be almost as long as the case is wide the bulb should not touch the case but come close hope this helps .
96439
the light has a low level light always on. When activated it stays on for appx. 45 seconds.The major item you need to address is mounting the light where the sun shines on it or at least bright light during the day for hours.
1063765
no, not really, the lamp is bright enough to light the keyboard on your lap top so you can type in the dark, but the "square area" of illumination is limited, if you are reading a paperback, maybe. and no the light has only the one setting, on and off.
1598292
Hi there,It can be set up to light up all night. And if you can make sure it got at least 4 hours direct sunlight then it should be able to last at least 40 hours.Thanks,EESGI
1297448
I use it in a room with windows as well (partially lit at daylight, through curtains). Currently set at brightness -3 to -6 in eco mode for a use at night (i.e. I quite reduce the light output voluntarily) so I would say yes it is bright enough if your windows have some curtains or else to cut the light in.
669451
Sure, it's like leaving any light on. Don't think about it much. I've had no problems at 18 hours a day for months at a time. It's a nice little unit.
175816
I think it depends on how much light you require. I use it in my bedroom and it is definitely not enough light to do my make up in the morning, I need a secondary light, but it is enough to read and watch TV in the evening.
232123
I don't know. I did leave it on all night once by mistake and when I got up in the morning it was very weak but still had a light.
1243010
No, not at all. You'll have enough room to read 3 open books. It lights a nice size area. Hope this helps.
1352668
Yes and No. Yes, you can turn the light on and leave it on overnight. But no, it will turn itself off in the morning with when daylight comes. Maybe too smart for its own good, but good enough for me :-)
1737396
The light power is adjustable. I don't know the technicality of it, but you should be at a distance where your eyes can look at it occasionally. You need to use it for approximately 30 minutes in the morning or afternoon.
962097
It is bright enough but it needs to be close to their faces to illuminate the books well. Think of it as more of a night light rather than a book light. My son will fall asleep reading books with it in but he keeps it close to him in order to see well enough
298839
I use the lamp all the time as a reading lamp. It is virtually on all day & night. I've had it for over a year & it hasn't gone out yet.
1051474
It's photosensitive. I don't know the level of light it needs my bathroom is pretty dark so it's on most of the time except for a few hours a day when the sun hits the little window. Just see if it goes off when you hold it up to the light. Even my shadow over it will turn it on.