LED Current

[electricity_bill]

Bit of help needed. Trying to get a level crossing warning light flasher arrangement working using 5mm Red LEDs. At 3v, what would you expect the current to be per LED? I am measuring 150mA.
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[Loco]

You can use this LED calculator to determine the requirement for resistors and the power consumption. Just enter the values for your LED:

LED Calculator - Current limiting resistor calculator for LED arrays

This LED calculator will help you calculate the resistor values you will need when designing a series/parallel LED array circuit.

ledcalculator.net

 

[Dan]

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