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For connecting multiple LEDs in series, choose ones that have a similar current and current specifications, after which use Ohm's Law to calculate the need for the resistor needed.|Waterproof LED Bar 60LEDS

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        Discover the values for that LED's current and maximum current. This post is available on its package or data sheet. An alternative choice would be to go to the manufacturer's website.

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        Study Ohm's Law to calculate the minimum value for any current restricting resistor for any single LED. The equation is R = (Current Source -- LED Current) / LED current, where R may be the resistance.

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        Modify Ohm's Law and calculate the minimum R required for the amount of LEDs you want to become connected. For 3 of these in series, it's R = Current Source -- (V1   V2  V3) / LED Current, where V1, V2, and V3 would be the LED currents.|LED Strip Light

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        Multiply the current source by .9, and compare it towards the total amount of the LED currents. Ideally, this sum shouldn't be a lot more than 90 % from the current source's value. For 3 2.-volt LEDs, the entire sum is 6. volts, that is under 8.1 volts, or 90 % of the nine-volt battery source.

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        Calculate the minimum worth of the needed resistance. For instance, given a nine-volt battery and three 2.-volt LEDs having a maximum current of 30 mA each, the needed resistance R is (9 V -- (2 V   2 V   2 V) / .03 A = 100 ohms. The "milliamps" should be transformed into amplifiers by dividing by 1,000. Since 100 ohms is really a standard resistor value, it might be used. However, 120 or 150 ohm or any other greater valued standard resistors might be used rather, though this can modify the brightness.|SMD 5050 RGB waterproof LED Bar 60LEDS

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        Wire the LEDs in series using the current restricting resistor and battery. Make use of the jumper wires for connecting them together. Start by affixing the positive side from the battery towards the breadboard, and hooking up one finish from the resistor for this side. Connect the positive side of among the LEDs towards the resistor's free finish. Add another LEDs by lining them up to ensure that the positive sides always face for the positive side from the battery. Attach the negative terminal from the last LED to ground, after which also wire the gloomy from the battery to ground. The LEDs will illuminate.