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This calculator will help you determine the value of the resistor to add in series with the LEDs to limit the current. Just input the indicated values and press the "Calculate" button. As a bonus, it will also calculate the power consumed by each LED.
This LED calculator will help you calculate the resistor values you will need when designing a series/parallel LED array circuit.
With this online tool, you can easily calculate the current-limiting resistor for one or more LEDs, both in series and in parallel. Simply input the number of LEDs, the supply voltage, LED forward voltage, and LED current.
Calculate resistor values for LEDs using this simple calculator. Enter any three known values and press Calculate to solve for the others.
Calculate the optimal series resistor value for your LED based on supply voltage, LED forward voltage, and desired LED current. User-friendly, responsive, and accessible design.
When calculating the resistor size that you need to use, you need to find your source voltage, the forward voltage of the LED (basically, at which point the LED starts conducting), and then how much current you want it to conduct.
Calculate. [/fstyle] “Let’s Shed Some Light on Those LEDs!”. # LED Resistor Calculation Formula. R = (V_source - V_LED) / I_LED. Welcome to the LED Resistor Calculator, where we illuminate the path to choosing the perfect resistor for your LEDs. We promise, no light bulb moments needed!
