how much light do these filter? i don't want blackout, but dark enough for my baby to sleep.
1689370
They are too light weight for bright sunlight, mine are on the north side of the house so don't really get sun a lot in the winter, but you can still read a book in there in the daytime, basically they keep peeping tom's from peeping! try a cloth one made the same way in a medium range color rather than white, my medium cloth ones in the sewing room do a lot better and get sun from around 1100am til dark also helps to keep some of the heat out in the summer, I live in Florida. The cloth ones are more prcy but they last really well and you can just brush or vacuum them off, no wet cloths to mess with. Hope this helps. Dawn They are too light weight for bright sunlight, mine are on the north side of the house so don't really get sun a lot in the winter, but you can still read a book in there in the daytime, basically they keep peeping tom's from peeping! try a cloth one made the same way in a medium range color rather than white, my medium cloth ones in the sewing room do a lot better and get sun from around 1100am til dark also helps to keep some of the heat out in the summer, I live in Florida. The cloth ones are more prcy but they last really well and you can just brush or vacuum them off, no wet cloths to... » Read More They are too light weight for bright sunlight, mine are on the north side of the house so don't really get sun a lot in the winter, but you can still read a book in there in the daytime, basically they keep peeping tom's from peeping! try a cloth one made the same way in a medium range color rather than white, my medium cloth ones in the sewing room do a lot better and get sun from around 1100am til dark also helps to keep some of the heat out in the summer, I live in Florida. The cloth ones are more prcy but they last really well and you can just brush or vacuum them off, no wet cloths to mess with. Hope this helps. Dawn « Show Less
1689371
I think they are perfect. They let in some light but not blackout. Especially when the sun is shining. I got mine from the Warehouse so they weren't in perfect shape but I'm satisfied. They glue on the top & I was afraid they might fall but as long as you make sure woodwork isn't dirty and follow instructions, should be ok. Mine have stayed up for 2 years now. What I love is you just push them up 7 pull down with the lightest touch. Can't promise they'll be to your liking but I like mine.
1689372
The white one doesn't block much light. I even leave it down during the winter so the cold don't get in. The flowers have planty of light. If you looking for for less light try in darker color.
1267711
Yes they do block out blue light very effectively. Really helps to use in evening to aid sleep.
801210
Yes, they only go on when the light is quite dim. It doesn't have to be totally dark. I was skeptical at first, these are surprisingly useful. I just ordered a second set for a different location in our house.
808853
No, no filter that you place on your lens will help you take photos at night. In fact, any additional glass you add to the front of your camera will block some percentage of light coming through to the sensor. This one will in fact make your images come out virtually pitch black.
2041025
I have an Agrosun FLC32D grow light next to me as I write--it's in a standard-size table lamp with an ivory fabric shade covering it. I've had really good results with these. My place is surrounded by trees, so it's dark inside. I haven't had a plant in the living room die from lack of light since I bought these. Occasional inattention, yes; lack of light, no.
2087864
I used CFLs. The thinner profile ones. They can be seen from the side view, otherwise I like the lights
1551943
I really can't help you with THAT one....my child never uses under blacklight conditions. Sorry.
1367000
Yes to the blue light blocking. I use them only at the office to decrease frequency of headaches from overhead fluorescent and LED lights. Don't know about improved sleep.
2116856
Lights is on constantly. I had to use duct tape to cover it up as it was so bright and my baby kept looking at it when I wanted for her to go to sleep. Lol
1454011
These would be great for a child's room. I actually use the night light size bulb. The small ones. You can get up to 40 watt. but obviously for night light you wouldnt want that. Sometimes,but not that often they might go off or on with a power surge or if you had a cat that touched it. But it isn't an every night thing. They come on with the lightest touch. So even a little ones touch would turn it back on. Good luck. Children afraid of the dark, can be a tough period.
1848135
There are two tiny green lights at the bottom, but they do not bother me during the night. You can simply put a piece of electric or duct tape over them to completely black them out.
2089968
No, but you can turn them on 2 by 2 so there some minimal control of amount of light. You can also play a little with the extra filters.
1049050
I'd go with a much stronger filter. 1.8 maybe. Don't stack you'll just be begging for light scatter shooting in to a light source like that.
1773499
These projectors are so awesome for the price! They do ok in a moderate sunlight room, which is what we started with. But as we watched it at night and how clear and crisp the picture is we put room darking curtains on the windows. So you can still see the picture but the darker the more clear for sure! Hope it helps!
1814802
Hi Edna, Mine stay on a bit during the day, but only in my darker rooms. They are triggered by a light sensor, and the threshold does allow for some ambient light. If the light doesn't bother you, the electricity usage shouldn't be a concern (they're supposed to represent about $1/yr).
1149526
I find any lights annoying - covered it with a small scarf. What was REALLY ANNOYING was when the filter alarm went off at 2am and woke me out of a sound sleep and I lost a nights sleep.
2239523
none effectively. Light is less bright than a christmas light. Seems to last a night, but no practical amount of light is produced