Dimension 9 Personalized Solar Flashing Keychain - Best Friends (10011)
- Flashes for years with exposure to any light source^No batteries needed^Protected under US Patent Numbers 7734499 and D622955^Sleek, ultra-thin design^Over 250 popular names, titles, and initials available
With over 20 million units sold, the Personalized Solar Flashing Keychain is one of the hottest novelty products of all time. Delight in non-stop blinking action for several years without the use of a battery! Solar powered LED screen flashes on and off with exposure to any light source. Large key ring allows for easy slip-on attachment of keys and tags. Choose from hundreds of the most popular names, initials, and sentiments in the United States. Makes for a special personalized gift that friends and loved ones will treasure. Warning: Choking Hazard Small Parts. Not for children under 3 years. This is not a toy.
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The 4 star rating is because it didn't quite match what I expected by the description.
If you are expecting the unit to light up you may be disappointed. The display appears to consist of a solar cell with the design on it, in front of the solar cell is an LCD panel that turns black and blocks the view of the design. In low light the LCD panel stays clear and the design is visible, in medium to bright light the LCD turns on and off causing the device to alternate (flash) between the design and black.