This invention provides a decorative light bulb including a lampshade, a lamp holder, a light source component, a power supply component, a lampshade base and a lamp holder base; a mounting part is inserted into the lampshade base, and the lamp holder base is inserted into the lamp holder; the power supply component comprises a pair of wires; a through hole is provided on the lampshade base and the lamp holder base for the wires to pass through. A decorative light string comprising a main cable, a plurality of bulb sockets and a plurality of decorative light bulbs is also provided, and the decorative light bulbs and the bulb sockets are correspondingly provided. The decorative light bulb of the present invention replaces conventional auxiliary cables with the wire, so that when the decorative light string is stored, the entanglement of the auxiliary cables and the main cable can be prevented.

A light bulb socket adapter comprising a main body having an internal cavity, the main body having a first end and a second end, the first end having an Edison screw extending therefrom, a power supply driver arranged within the main body in communication with the Edison screw, a primary light source arranged within the main body proximate the second end, the primary light source in communication with the Edison screw, a processor arranged within the main body and in communication with the power supply drive, the processor in communication with at least one sensor within the main body, the processor having a radio transceiver and at least one antenna, and an electrical output in communication with the power supply driver. The light bulb socket adapter may also include at least one of a passive heat management system and an active heat management system.

A light bulb socket adapter comprising a main body having an internal cavity, the main body having a first end and a second end, the first end having an Edison screw extending therefrom, a power supply driver arranged within the main body in communication with the Edison screw, a primary light source arranged within the main body proximate the second end, the primary light source in communication with the Edison screw, a processor arranged within the main body and in communication with the power supply drive, the processor in communication with at least one sensor within the main body, the processor having a radio transceiver and at least one antenna, and an electrical output in communication with the power supply driver. The light bulb socket adapter may also include at least one of a passive heat management system and an active heat management system.

A light with retractable sleeve comprises housing, a retractable sleeve disposed inside the housing, and a light body embedded in a front end of the retractable sleeve and protruding out of the housing; the retractable, sleeve comprising an inner sleeve, an outer sleeve disposed outside the inner sleeve, and a connector; the inner sleeve having a gear rack; the outer sleeve having thereon a button corresponding to the gear rack; the button being attached on the gear rack via a resilient element to prevent the outer sleeve from undesirably moving out of the inner sleeve along the axial direction; the outer sleeve and the inner sleeve can be extended with each other, so that the outer sleeve is extended out of the housing, thereby facilitating the light body installed thereon, the structure is simple and easy to use.

An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.

An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.

An anti-loosening light device includes a light bulb and a light socket. One end of the light bulb is screwed into the light socket and is detachably connected to the light socket. The light bulb includes a bulb head and a bulb body. The bulb head is connected to the bulb body. The bulb body is provided with a bulb body positioning part. The bulb body positioning part is connected to the light socket. The light socket includes a socket body and socket limiting parts. The socket limiting parts are connected to the socket body. One end of the light bulb is inserted into the socket body. The bulb body positioning part is installed on the socket limiting parts. The bulb body positioning part and the socket limiting parts are engaged with each other.

An anti-loosening light device includes a light bulb and a light socket. One end of the light bulb is screwed into the light socket and is detachably connected to the light socket. The light bulb includes a bulb head and a bulb body. The bulb head is connected to the bulb body. The bulb body is provided with a bulb body positioning part. The bulb body positioning part is connected to the light socket. The light socket includes a socket body and socket limiting parts. The socket limiting parts are connected to the socket body. One end of the light bulb is inserted into the socket body. The bulb body positioning part is installed on the socket limiting parts. The bulb body positioning part and the socket limiting parts are engaged with each other.

An E26 plastic lampholder is composed of a housing, a plastic bracket, a plastic threaded ring, a positive electrode plate and a negative electrode plate and installed to a downlight. The lampholder has two wire plug slots for plugging two electrodes of a power line by a bare line section, so that a power source is introduced with a convenient operation. The plastic bracket and the housing of the E26 plastic lampholder are made of a plastic material, and a combining groove is reserved on the housing 1 and provided for installing and positioning the plastic bracket, or the housing and the plastic bracket are integrally formed for a more convenient assembling operation. In the meantime, the plastic threaded ring of the E26 plastic lampholder is integrally formed in the housing, so as to facilitate the manufacturing and assembling processes.

An E26 plastic lampholder is composed of a housing, a plastic bracket, a plastic threaded ring, a positive electrode plate and a negative electrode plate and installed to a downlight. The lampholder has two wire plug slots for plugging two electrodes of a power line by a bare line section, so that a power source is introduced with a convenient operation. The plastic bracket and the housing of the E26 plastic lampholder are made of a plastic material, and a combining groove is reserved on the housing 1 and provided for installing and positioning the plastic bracket, or the housing and the plastic bracket are integrally formed for a more convenient assembling operation. In the meantime, the plastic threaded ring of the E26 plastic lampholder is integrally formed in the housing, so as to facilitate the manufacturing and assembling processes.