How to make a 2-5 volt LED work on 12 volts | Off Topic

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#120055 - 09/10/2002 19:20 Re: How to make a 2-5 volt LED work on 12 volts [Re: acurasquirrel_]
Rod journeyman Registered: 04/05/2000 Posts: 84 Loc: Australia	To run and LED of 12 Volts you will need a resistor in series with the LED. (Input voltage - LED Voltage)/LED current in amps = Resistor value ohms So for an LED running at 2Volts and a current of 10mA (0.01A) the resistor value will be (12-2)/0.01 = 1000ohm (1K ohm) Also the LED must be connected with the correct polarity, the long lead is positive. If the leads have already been cut the lead closest to the flat section near the base of the LED is negative. Rod.
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Subject	Posted by	Posted
How to make a 2-5 volt LED work on 12 volts	acurasquirrel_	09/10/2002 18:45
Re: How to make a 2-5 volt LED work on 12 volts	Rod	09/10/2002 19:20
Re: How to make a 2-5 volt LED work on 12 volts	acurasquirrel_	09/10/2002 19:32
Re: How to make a 2-5 volt LED work on 12 volts	Rod	09/10/2002 19:55
Re: How to make a 2-5 volt LED work on 12 volts	number6	09/10/2002 20:03
Re: How to make a 2-5 volt LED work on 12 volts	acurasquirrel_	09/10/2002 20:15
Re: How to make a 2-5 volt LED work on 12 volts	number6	09/10/2002 20:32
Re: How to make a 2-5 volt LED work on 12 volts	Rod	09/10/2002 20:32
Re: How to make a 2-5 volt LED work on 12 volts	mtempsch	10/10/2002 09:35
Re: How to make a 2-5 volt LED work on 12 volts	acurasquirrel_	10/10/2002 12:36
Re: How to make a 2-5 volt LED work on 12 volts	mtempsch	10/10/2002 21:36