Most 3mm LED's I've worked with in the past work on about 3.0-3.5v to run. So you would need to run 4 in series, and 5 sets in parallel so each set gets 12v. You could probably do 5 series 4 parallel as you said. Depends on the voltage the LED runs on. And remember the higher the voltage, the brighter the light, but also the shorter life span and likely hood they burn out.
As for your diagram. The bottom one with side running lights/turn signals, dual color LED's come with 3 leads, one negative and a positive for each color.
As for the top left one, if you want to run running lights and brake lights I haven't tested but am pretty sure they are both 12v. I would try using a resistor on the running lights to lower the voltage going to the LED's. That way when you use brakes the voltage goes up and they get brighter. Just remember too low of voltage, aka too much resistance, the LED's won't turn on.
You should be able to use a amber/red LED and and split the lead for 12v Red like the image on the top left. You would have running lights, brake, and turn signals in 1 LED.
And not really sure what you were getting at on the top right diagram.
As for viewing angle. I think even 30 would be fine, if someone is at greater then a 30 degree angle from you your front signals, assuming they're aftermarkets, will be visible from the side. 45 would probably work good.
And in the past I have ordered LED's from oznium.com and digikey.com
If you spend the time in the catalog digikey has an enormous selection, and I'm not too sure oznium has dual colored LED's. Been a while since I looked.
Hope this helped.
As for your diagram. The bottom one with side running lights/turn signals, dual color LED's come with 3 leads, one negative and a positive for each color.
As for the top left one, if you want to run running lights and brake lights I haven't tested but am pretty sure they are both 12v. I would try using a resistor on the running lights to lower the voltage going to the LED's. That way when you use brakes the voltage goes up and they get brighter. Just remember too low of voltage, aka too much resistance, the LED's won't turn on.
You should be able to use a amber/red LED and and split the lead for 12v Red like the image on the top left. You would have running lights, brake, and turn signals in 1 LED.
And not really sure what you were getting at on the top right diagram.
As for viewing angle. I think even 30 would be fine, if someone is at greater then a 30 degree angle from you your front signals, assuming they're aftermarkets, will be visible from the side. 45 would probably work good.
And in the past I have ordered LED's from oznium.com and digikey.com
If you spend the time in the catalog digikey has an enormous selection, and I'm not too sure oznium has dual colored LED's. Been a while since I looked.
Hope this helped.
