Self-ballasted fluorescent lamp and luminaire

A self-ballasted fluorescent lamp comprising:

• a fluorescent lamp;
• a lighting circuit having a one-package switch, inductors, and capacitors, said one-package switch containing in a single package a pair of field effect transistors that serve as inverter switches for driving the fluorescent lamp, said field effect transistors being complementary;
• and
• a circuit board having a first face facing away from said fluorescent lamp and a second face facing towards said fluorescent lamp, said first face having at least both a smoothing capacitor and a current-limiting inductor, which have relatively large dimensions, mounted thereon;
• wherein:
• said one-package switch is a generally rectangular surface mounting device with a length and width respectively not exceeding 6 mm and provided with terminals extending from two opposing sides thereof;
• and
• said one-package switch is surface mounted on either said first face or said second face of said circuit board through said terminals,
• wherein paired drain terminals for each complementary field effect transistor are arranged side-by-side and project from one side of the package, and a gate terminal and source terminal for each complementary field effect transistor are arranged side by side and project from an opposing side of the package.