Nice timer that controls the white and blue LEDs separately. I found it easy to program and the timer actually tells the exact time. I've had one of these for a few months and it worked flawlessly. My only issue is that the LED on the timer itself is too bright; it is bright enough to be used as a night light (more on that in the next paragraph). I use this LED timer in my 240 gallon cichlid tank. Some fish tend to go mad and go wild when there is a sudden change in brightness, so I set the blue LED on for a few minutes before the white goes out so my fish don't go mad when it suddenly gets dark ( this process is reversed if the light is programmed to turn on). I have an inverted timer on top of my tank. So when the blue moon LED light turns off, the number on the timer itself serves as a night light that stays on all night. I am very happy with this addition to my aquarium as it has reduced injury to my fish and the aquariums look great.
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