Purchased this clock for my Nanny whose eyesight is failing. The numbers are the perfect size and the fact the light behind the numbers automatically dims at night is brilliant. It is also a 24 hour clock which is great as my Nanny is suffering from dementia, so when it shows 17:00 instead of 05:00 with a dot by it as other clocks do, she can actually tell what time of day it is. I wish I'd found it in summer when it was still light at 22:00!