Illuminating lamp

An illuminating lamp comprising:

• a decorative component including a mounting member, mounted to an opening provided at an interior component of a vehicle having a compartment, and a lens mounted at a vehicle compartment side of the mounting member;
• and
• a functional component including a light source and a holder holding the light source, wherein the holder is mounted at the mounting member,
• wherein the mounting member includes:
• a flat plate to which the holder is mounted on a surface thereof;
• an aperture provided at the flat plate to transmit light of the light source into the compartment of the vehicle;
• and a cover portion receiving the light source thereinside, wherein the cover portion is provided at an outer side of the compartment of the flat plate so as to cover the aperture and reflect the light of the light source into the compartment,
• wherein the cover portion includes an opening portion at one end thereof along a longitudinal direction of the flat plate through which the light source is inserted along the flat plate and the cover portion and the holder are separate and abut each other at one side when the light source is received thereinside the cover portion.