Kuwan Wan Digital Alarm Clock Battery Powered by Large LED Time Display (Black)

The main concern from all buyers will be battery life and accuracy. 1) For real life alkaline battery life test for my last 3 month use, each battery voltage will drop about 0.1V every 3 months. The unit can still operate with 1.2V. That means 4x new alkaline batteries will last about 9 to 12 months with lowest brightness level. The time can be read clearly from 3 meters away in total darkness with lowest brightness level. (Unit provided 3 levels of brightness) 2) The time is accurate within 30s after 3 months usage. I used 4x alkaline Battery. Now they are about 1.2V.

At that price, ClasOhlson offers a Radio along with a digital LED clock alarm. Amazon must reduce the price for this 'Made-in-China' item' !!!

This is a brilliant battery-powered digital alarm clock. In some ways this is quite an ordinary bedside type alarm clock, with a reasonable display, reasonable price, and OK time-keeping. But there is one thing which makes this clock exceptional - the fact that it is powered by 4 AA batteries! My application is somewhat unusual - I play in a band, and I wanted a battery powered clock with large, easy to see digits to put on my pedal board, so that I can see how long we have been playing, and how long to go until it is time to stop (some venues have quite strict curfews imposed by the local council, so stopping on time is essential if you want to be re-booked!). There are plenty of small clocks out there which fit the bill, but most are either mains powered, or require a button to be pushed to see the display! This clock has a big, clear, easy to read display, which is ALWAYS ON! The batteries are claimed to last a year, which is amazing! I had the original batteries in for 6 months, and they seemed perfectly OK, (with perhaps a very slight dimming of the display), however, I changed them as a precaution. However I have no doubt they would have gone on for much longer! The clock has an "auto-dim" mode, which dims the display slightly from (I think) 8 PM to 8 AM. This is probably quite useful if you use this as intended, as a bedside clock, but for my purposes I don't need this. I simply set the time 8 12 hours fast or slow, so that the display is at its maximum brightness at times when I need to use it! It is small enough to fit on my pedal board, the display is always on and timekeeping seems to be reasonable, with the clock gaining about 1 minute over a 6 month period. In summary this is an averagely good bedside (or pedalboard) clock, which is made exceptional due to its battery power, always on display, and long battery life!

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This small digital alarm clock has been perfect for our home! It’s simple, easy to use, and my kids absolutely love it. The adjustable 3-level LED brightness is a fantastic feature – we can dim it at night so it doesn’t disturb their sleep, and then brighten it in the morning. It’s also battery-operated, so no worries about it shutting off during a power outage and easy to take camping. The compact design fits perfectly on their bedside tables, and the numbers are easy to read. I’m really happy with this clock!