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E2K said:Hi guys
How do i calculate time for a circuit or device from its Current?
Example:
If a 10mA LED connect to a 6V 4.5Ah battery with a 1K series resistor what is the maximam time of glowing LED ?
E2K said:same formula can use for other circuits like a timer,flasher or others?
hi Ron,Ron H said:I don't know of an LED with a forward voltage drop of less than 1.5V. See https://www.oksolar.com/led/led_color_chart.htm