Really no complaints about this light I tried a couple others before this one and have been running it for quite a while now in my planted tank it's a great deal for all the features that actually work like they should.
It's a little confusing to program but once you get used to it not too bad it took me a while to figure out that you have to adjust the brightness equally for all the color spectrums to get it to properly dim to the level needed. I only run the brightness around 60% seems to run just mildly warm to the touch while making plenty of light for my 36 gallon tank.
The battery backup seems to work great the temperature reads accurate and about an hr after lights out for the night the backlight on the display also goes off for the night.