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6 Volt powered led

Discussion in 'LEDs and Optoelectronics' started by tomahawk, Sep 29, 2011.

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  1. tomahawk


    Sep 29, 2011
    I have a plan to power a LED to make a lamp. It is two 3 volt coin batteries connected in a series to produce 6 volts with a 120 ohm 1/8w resistor to power it to its fullest extent. For the On/Off I wanted to add a botton ( Would I need to change anything up to put the button in.
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    That switch will only have the LED on while you press the switch. If that's fine with you, then use that switch.

    Assuming it's a white LED, and the LED is rated for 25mA, then all should be fine.

    Everything is connected in series (but I'm sure you knew that)
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