First of All: Hi everyone, I am new to this group. I have been using it as a resource for a while.

My question is: How would you consider connecting two different types of LED's say a white (6v@150mA) and Red (2v@350mA) in a series-parallel combination? (W W R W W R W W) << parallel multiple strings of 8 series connected LEDs.

Similar LED will share more or less the same characteristics within a series / parallel circuit using a constant current and a small current balancing circuit (mirror or similar). If I use a CC driver for the LED's it will divide the current to each parral string for stance 150mA per string. But now I have a couple of 350mA LEDs within each series string. This wil either cause the efficacy to be next to zero or they will not even light up. Driving all the strings at 350mA will probably create a small electrical fire.

Any insights?