query: Best way to power 30-90 LEDs on 3.5 OR 12v
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positive_passages.text: How to drive 128 LEDs
negative_passages.docid: 7621
negative_passages.text: Reducing voltage with resistors
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negative_passages.text: Is it OK to put LEDs in parallel?
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negative_passages.text: How long would a 150 Farad Capacitor light up an LED
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negative_passages.text: led resistor calculation, and resistor wattage?
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negative_passages.text: How can I efficiently drive an LED?
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negative_passages.text: How to power a button's LED within a guitar?
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negative_passages.text: What resistor is needed to regulate the current through 2 3V LEDs in series with a 9V battery?
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negative_passages.text: Resistor selection for LED
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negative_passages.text: Can I safely use a 9w LED bulb in place of a 40w incandescent?
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negative_passages.text: LED conversion efficiency exceed 100%
negative_passages.docid: 83294
negative_passages.text: How can i drive a 5v 120VAC 80mA with 15A contacts with a raspberry pi?
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negative_passages.text: Practical way to generate 1500V?
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negative_passages.text: Powering Arduino from a voltage divider
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negative_passages.text: simple, energy efficient circuit to make single IR LED blink