I wish to wire a super bright flashing 10mm LED to a circuit on my car, the battery supplies 12 volts the However I need to know what value of Resistor I need to enable me to do this. The specification for the led bought from Maplin is http://www.maplin.co.uk/module.aspx?ITAG=SPEC&ModuleNo=35843&doy=13m3#spec
Super Bright Diffused Red 0.5V
Kingbright description: L-816BSRD-B
Forward voltage: 2.5V
Forward current max.: 55mA
Reverse voltage max.: 0.5V
Wavelength @ peak : 660nm
Power dissipation PT: 310mW
Light output min.@ 9V: 100mcd
Light output typ.@ 9V: 300mcd
Can any body please advise me as to the type of Resistor needed for this type of LED to enable me to connect to a circuit powered by a 12 volt car battery?
Super Bright Diffused Red 0.5V
Kingbright description: L-816BSRD-B
Forward voltage: 2.5V
Forward current max.: 55mA
Reverse voltage max.: 0.5V
Wavelength @ peak : 660nm
Power dissipation PT: 310mW
Light output min.@ 9V: 100mcd
Light output typ.@ 9V: 300mcd
Can any body please advise me as to the type of Resistor needed for this type of LED to enable me to connect to a circuit powered by a 12 volt car battery?