upgraded deep red

Upgraded my deep red flashlight. Now it operates 4 LEDs as opposed to the 2 of the original build. Had the angle DIP socket ready to go with 2 vacant spots. I don't know why but I didn't future-proof the circuit board when I made it so I had to do a wee bit of soldering... Anyhoo. Quick fix.

Happy to have more 660nm emitters now when I need a bit more light... Easy expansion was designed in from day 1.