Dexim developed a visible green charger for iPhone and iPad. Dexim Visible Green Smart Charger for iPhone and iPad  is developed with the help of electroluminescent  technology, which allows us to see the flow of current to the iPhone or iPad. You can actually see how fast your device is charging with this cable and adapter. Once the charge is completed the flow of current is automatically stopped.
There are there levels in current flowing speed.
| Phone battery level | Visible current flowing speed |
| 1% – 65% | Fast |
| 65% – 99% | Slower |
| 100% | Off |
You can get Dexim Visible Green Smart Charger for iPhone and iPad for $30 from Amazon.
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