Just let me list cons of this clock, since it has almost no "pro"-s:
1. Indication is not GREEN, it's YELLOW.
2. Indicator is not a 7 segment LED. It is just painted like that, and inside each segment there are 2 yellow leds, nicely visible.
3. There's no built in crystal oscillator, this unit takes frequency from AC line (Silan Semiconductors SC8560 IC is used). This means, if you're in rural area with less stable frequency in AC line, you most likely will have 10 minute error per week. (Manufacturer saved $0.20 by not installing crystal oscillator inside). My grandpa's cuckoo clock had much more accuracy!
4. When on battery backup, indicator is NOT enabled, and also, clock starts to mess up the time wildly.
5. Overall build quality is very bad, with most screws missing, plastic having bad odour and so on.
I wanted to have reliable LED clock, so this is why I paid so much for it. But all I've got is the same quality and features, I can get for $2 at chinese fleamarket. So, Be careful when buying this clock.