my front two were from walmart. $10 each for 15" tubes.
my mid bar is some brand i dont know. it was free. it's a 20" i think.
my rear neon next to the subs is a street glow. $45 for a 20" tube.
installed myself - free. switch: $2
...looks just like the other guy's picture...
pretty easy if you know what you're doing. about 10 mins a light.