This Led table or reading lamp circuit can be used for many purposes for example as a reading lamp for bed, desktop or table lamp, keyboard lamp (to view keys of your computer keyboard in dim light), as an LED emergency light in the absence of AC supply, as a portable light etc. This led lamp circuit is consist
of 20 super bright white LEDs, each LED is using a separate current limiting resistor of 20 Ohms. The switch S1 is used to disconnect the 10 LEDs from the supply, it can be useful when you want low light and also save power from the batteries. The circuit can be operated with 3 x 1.5 volt batteries.
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