Adapter for 5 mm led

[eli@fijireefrock.com]

ok this is how i remenber it.
your 5mm led are probably the basic ones.
white or blue led 5mm forward voltage should be no more than 3.3v and 20 mA for forward current.

Solution

• each 120 ohm resistor dissipates 48 mW
• the color code for 120 is brown red brown
• 1/4W resistors are fine for your application
• together, all resistors dissipate 192 mW
• together, the diodes dissipate 792 mW
• total power dissipated by the array is 984 mW
• the array draws current of 80 mA from the source.
• the 12v 500mA power source you have is plenty for your array.
• fill in the gap in the site i originally posted and you get a drawing graph of you array.