58 of 64 people found the following review helpful
Still In the Dark - Wait! I See the Light.,
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This review is from: Seiko Wall Clock Silver-Tone Metallic Case Luminous Numerals (Watch)
This clock does not glow in the dark in the least. I exposed it to direct sunlight for two straight days hoping that would somehow "energize" the florescence. It did glow at noon when tested in the bathroom, but by night when I went to hang in on the wall: nothing. Keeps time fine, but I could have paid less if I only wanted a simple clock. Will be returning this to Amazon for credit. As I was preparing this for shipping, I thought I would see if perhaps the AA battery which came with the clock would make a difference. I found it was not a simple AA, but an "R6+AA" battery from Panasonic. I then did the closed bathroom door test and the clock is very bright, working as I had hoped. So, I am now keeping the clock and recommending others to buy it. Just be sure to use the battery that comes with the clock. To fair to myself, the brief instructions from Seiko do not specificy this unique battery is required. I may be revising my review once more if I can never find an "R6+AA" replacement! Cheers.
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Showing 1-4 of 4 posts in this discussion
Initial post: Oct 26, 2011 1:35:05 PM PDT
H. Pau says:
From Wikipedia, here are the IEC names for AA batteries based their chemistry:
- LR6 (alkaline)
- R6 (carbon-zinc)
- FR6 (Li-FeS2)
- HR6 (NiMH)
- KR6 (NiCd)
- ZR6 (NiOOH)
In reply to an earlier post on Oct 23, 2013 9:59:31 PM PDT
Doesn't make sense. Why would a different formulation battery make the clock glow?
In reply to an earlier post on Nov 23, 2013 6:51:42 PM PST
Please refer to your notes from Chemistry 101. Different formulation means the electrical output is different i.e. higher Amps and/or Voltage.
In reply to an earlier post on Nov 24, 2013 6:48:40 AM PST
Mister Mash says:
Thank you, Professor Tesla.
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