Abstract: An illumination apparatus for single-base lamps is equipped with a power receiving plug which receives a supply of power by being fitted into a base socket of a power supply side, a main body which forms an integrated body with said power receiving plug, and a plurality of base sockets arranged on said main body on the opposite surface with said power receiving plug, wherein said base sockets are mounted at slopping angles which spread outward with respect to the axis of said power receiving plug.

Abstract: A constant flow apparatus for adapting a fluid flow passing through a pipe at constant value comprises a tubular body to be mounted inside the pipe, an orifice disposed at the output end side of the tubular body, a movable needle with a flat tip portion positioned opposite the orifice, a spring supporting the needle with appropriate elastic force, and an elastic tubular sealing member having a circumferential bulging portion provided on the outside of the tubular body to cover the tubular body. The constant flow apparatus can be fixedly mounted in the pipe irrespective of the diameter of the pipe, and adapt the fluid flow passing through the pipe, preventing the needle from vibration.