Connecting assembly in light strings to maintain electrical connection

A lamp for a light string, the lamp comprising:

• a light bulb composed of a globe and a base firmly engaged with a bottom of the globe and provided with two leads extending out of the globe and arranged in two opposed sides of the base and an extension extending integrally from a bottom of the base;
• and
• a light bulb socket having a socket with two open ends, a passage in communication with the two open ends, a plug securely received in the passage and having two opposed cutouts receiving therein two electrical wires each having a connecting plate securely attached to a top end thereof and extending out of the two cutouts and an indent defined in the plug and between the two cutouts and a V-shaped spring movably received in the indent and having two ends extending out of the indent of the plug to selectively engage with the two connecting plates such that when the base of the light bulb is extended into the passage, the two ends of the spring are pushed away from engagement with the two connecting plates and the spring is extended further into the indent of the plug to have a deform, the two leads are engaged with the two connecting plates to maintain electrical engagement between the two connecting plates and when the light bulb is removed from the passage, the two ends of the spring are lifted by a recovery force of the spring when deformed to engage with the two connecting plates to maintain the two connecting plates in electrical connection.