Newbie - BlinkStick Questions

Hi Everyone,

I’m very interested in picking up a Flex and possibly a few of the Strips. Can anyone tell me how bright the Flex is under USB power with all 32 LEDs being used? Related to that, is there any way to add additional power to the Flex to enable more brightness?

Barring all of that, does the pre-soldered version of the Pro have any kind of connectors already attached? How do you provide external power?