Auto Night Lamp Using High Power LEDs

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Introduction: Auto Night Lamp Using High Power LEDs

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This is one of the very useful circuits named "Auto Night Lamp Using High Power LEDs". This is a simple circuit which turns ON the LED lights interfaced to it at night time and it turns OFF the lights automatically when it is day.

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    hi can you please suggest any alternative for TN2905A power transistor as this is not available,....can i use 2N2905 in this case

    I would find these more interesting if they were more than just schematics, and at that pretty much just a link to another site. Could you have a little more discussion, perhaps show a build of the circuit?