Originally Posted by lovegroove
If you have a power distribution board that has more outputs than you have motors, then use a spare point to solder your LEDs to. If not, then yes, solder to the same point as an ESC.
I always solder an accessory cable ( 6" extension with JST connector ) onto the power distribution board when I'm building my copters. That way I always have an easy option if I later decide to add accesories that need power because my power distro board always ends up buried under everything else and is a pain to get to if you want to solder something else onto it.
the HK power board I got has a small 2 pin connector that should power leds with no problem.