There's a lot to love about these shades. Like their other shades, the measurement accuracy and build quality is top-notch! Measure them according to the directions and the shades you receive will fit perfectly in both dimensions. They work quite well, as advertised.
Bringnox' Day/Night shades have two separate motors in the headrail, one per shade. By default the "night" (room darkening) shade is stacked below the "day" (light filtering) and always closes first.
That said, they're not quite perfect. The Day/Night shades, in particular, are under-documented: all you get with them is a small one-page leaflet that doesn't even really explain how they work. The shade motor itself is very clever: it coordinates the two shades automatically. If you want to lower both shades, for example, it starts the bottom shade down just a bit before the top, to prevent binding.
All of the cellular shades start with three minor issues. The pairing "M" button, the battery on/off switch, and the charging status light all hide inside the headrail and aren't accessible without taking the shade off of its brackets. This isn't hard (except on larger three-bracket shades) as the brackets are spring-loaded, and you can see the reflection of the charge-status light in the dark, but it's not quite optimal. You normally never have to turn the shades off once they're installed, but if anything happens to the WiFi hub or remote, you will need access to the pairing button to re-pair the shade to the controller.
While the upper and lower limits start off factory-perfect, a week or so of use allows the cords and reels to "settle" a bit. If the "day" shade is very tight against the headrail, the "night" shade won't move freely, and one side or the other may bind up and not lower properly. This takes adjusting the limit positions a bit, which is well-documented... except in the case of the Day/Night shades.
Here again, a lot of cleverness. All of the Bringnox shades have an "admin" switch on the back of the remote. Once in that mode, the "up" and "down" buttons alternate between slow/fine adjustments and a more normal speed. Get the upper or bottom limit where you want it, hold the appropriate set-limit button for two seconds, and the shade moves briefly to show it's accepted the new position. Great!
Except - setting the limit sets it for both "day" and "night" at once. Don't do what I did, and set the limit with one shade "up" and the other one "down". You have to move both shades to the upper position, set that, then move them both to the bottom, and set that.
I've seen one of my shades get confused and pair one of the two shades to an extra channel! And this is where the power-switch and pairing button location is a problem, because the instructions tell you to turn all other shades off before unpairing anything. That direction is incorrect, fortunately. To unpair a shade, you select the channel you want to unpair, flip to admin mode, and press the "Set" button 5 times in a row. It unpairs only the shades that are powered on, in range, and (most importantly) on that particular channel. It doesn't require you to turn off every other shade, thank goodness.
The WiFi gateway is both surprisingly good and yet has a few misfeatures. It pairs easily - similar to the remotes. It reports the battery level of each shade, signal strength, and current position. A slide control lets you set the shade to any position, in 1% increments, and that really works. And when you create a scene - a really nice UI for that - it immediately shares the scene to any linked Amazon Echo or Google Home device and, on iOS, also offers to make the scene a Siri command, and it even installs an Apple Watch app with scene control buttons! Genius!
But... It seems to fire off commands to the shades too quickly. We have 5 shades in a room. Individually these are 100% reliable over the WiFi link. But operate all 5 at once (no problem for the remote control!), maybe 3 or 4 of the shades will actually move. The others get a "connection timed out", but they'll work on the second or third try. Timed events work brilliantly, but what if you want 100% reliability, have multiple shades fire one minute apart from each other for best results.
The Day/Night shades pair as though they were two completely independent devices, ("smart motor 8", "smart motor 9"), leaving you to figure out which is which, and there's absolutely no coordination between the "Day" and "Night" shades except for what you arrange yourself via scenes. The app has a setting for the type of the shade, and "Day/Night" is even an option, but it has absolutely no effect on anything.
This is where the intelligence of the motor collides with the app, a bit. If you raise or lower one of the two shades and it "hits" the other - say the "Day" shade is halfway down, and you hit the "Up" button on "Night", it will stop the movement of "Night" at the halfway point too. Nothing is expecting that, and you have to know to press night-up a second time if you want to open both shades all the way. The best thing to do in the app is, by experimentation, to never use "Up" or "Down" - instead, use "Set Curtain Position" and always set the desired position of both shades.
There is no documentation on how to set the "Favorite" position for a Day/Night shade like you can set ordinary shades. I'm not sure it has that feature at all.
Overall: these shades work really well, are built and sized excellently. The documentation and software for Day/Night needs a little more work to be really user-friendly.
