Lamp comprising glass tube having pinched sealed portion at end

A lamp comprising a glass tube and a base, the glass tube having a pinch sealed portion at an end thereof, and the base being attached to the end of the glass tube, wherein:

• a width thereof in pinch directions is smaller than a width thereof in a direction orthogonal to the pinch directions,
• a pair of electrical connection wires extend out from the pinch sealed portion in a direction parallel to a flat surface of the pinch sealed portion at a predetermined distance from each other, the direction being orthogonal to the pinch directions,
• the base includes a pair of tubular base pins extending in a same direction as the electrical connection wires,
• the electrical connection wires are fixed to the base pins by respective concavities located in sides of the base pins, with the electrical connection wires being inserted in the base pins, and
• each of the concavities in the base pins has a central axis that extends in a direction within a range of ±10° with respect to an imaginary plane that extends along the central axis of the lamp and the central axis of each base pin, and each concavity is formed on the side of the base pins not facing the other base pin.