The invention discloses an energy-saving
bulb, which can transplant a
halogen lamp to a universal lamp base of an incandescent lamp, wherein the connection between an
electrode of the
halogen lamp and a lead wire of the universal lamp base is quick, reliable and safe, and the
halogen lamp is positioned in the
bulb accurately and conveniently so as to ensure that the
halogen lamp is positioned in the
luminescence center of the energy-saving
bulb. The energy-saving bulb is provided with a
ceramic insulating lamp holder in the universal lamp base, the upper part of the
ceramic insulating lamp holder is provided with two vertical
metal tube type
electrode columns which extend upwards and are parallel with each other, two electrodes of the
halogen lamp are inserted in the two
metal tube type
electrode columns respectively, and the upper ends of two electrode leading wires are also inserted in the
metal tube type electrode columns respectively and are connected therein through
mechanical pressure welding, while the lower ends of the two electrode leading wires are connected with the two electrodes of the lamp base respectively. The energy-saving bulb can be widely applied to various illumination places and is suitable to be used in various incandescent lamp bases.