A light engine comprising a substantially tubular substrate including base portion with a plurality of slots, a first group of at least two filament LEDs on a first portion of the substantially tubular substrate, and a second group of at least two filament LEDs on a second portion of the substantially tubular substrate. Each of the first and second groups of the at least two filament LEDs being electrically connected through a base electrode to electrode contacts in the slots. The light engine also includes an electrical bus wire present proximate to the end of the substantially tubular substrate that is opposite the end at the base portion of the substantially tubular substrate, the electrical bus wire in contact with each filament LED for each of the first and second groups of at least two filament LEDs.

A light engine comprising a substantially tubular substrate including base portion with a plurality of slots, a first group of at least two filament LEDs on a first portion of the substantially tubular substrate, and a second group of at least two filament LEDs on a second portion of the substantially tubular substrate. Each of the first and second groups of the at least two filament LEDs being electrically connected through a base electrode to electrode contacts in the slots. The light engine also includes an electrical bus wire present proximate to the end of the substantially tubular substrate that is opposite the end at the base portion of the substantially tubular substrate, the electrical bus wire in contact with each filament LED for each of the first and second groups of at least two filament LEDs.

Examples of the disclosure disclose a heat dissipation structure for a lamp, which includes: a base cup, a supporting top cover, a base cup heat dissipation housing, and a top cover heat dissipation housing. The base cup and the supporting top cover are both made of metal, the supporting top cover is detachably connected to the base cup by interference fitting; and the base cup heat dissipation housing and the top cover heat dissipation housing are both made of thermally conductive plastic. In the present disclosure, the supporting top cover and the base cup are connected to each other by interference fitting to form an internal heat conduction structure; the heat is transferred to the outside by the top cover heat dissipation housing corresponding to the supporting top cover and the base cup corresponding to the base cup.

An intelligent lamp group includes a central lamp and at least one peripheral lamp. The central lamp includes a first lamp housing, a first light emitter, a first lampshade, a video camera module, an external memory and a system-on-chip. The first light emitter is disposed on the first lamp housing. The first lampshade covers the first light emitter. The video camera module is fixed in the first lampshade. The system-on-chip of the central lamp having a combo wireless communication module is configured to build a local wireless network to connect all the peripheral lamps, hence the user can only focus on the central lamp to achieve the remote control for the central lamp and all the peripheral lamps. In addition, through the combo wireless communication module, the central lamp can build an internet connection with the user's mobile device for the light remote control and the security monitoring.

An intelligent lamp group includes a central lamp and at least one peripheral lamp. The central lamp includes a first lamp housing, a first light emitter, a first lampshade, a video camera module, an external memory and a system-on-chip. The first light emitter is disposed on the first lamp housing. The first lampshade covers the first light emitter. The video camera module is fixed in the first lampshade. The system-on-chip of the central lamp having a combo wireless communication module is configured to build a local wireless network to connect all the peripheral lamps, hence the user can only focus on the central lamp to achieve the remote control for the central lamp and all the peripheral lamps. In addition, through the combo wireless communication module, the central lamp can build an internet connection with the user's mobile device for the light remote control and the security monitoring.

A LED lamp bulb includes an envelope having a tubular neck, a LED driver module including a cladding layer-wrapped circuit board press-fitted into the tubular neck of the envelope in a watertight manner, a LED circuit assembly supported on the circuit board-wrapped circuit board and suspending in the envelope and positive and negative lead wires respectively connected to the cladding layer-wrapped circuit board and disposed outside the envelope, and a lamp head bonded to the outer peripheral wall of the tubular neck of the envelope with the center contact thereof electrically connected with the positive lead wire of the LED driver module and the ring contact thereof electrically connected with the negative lead wire of the LED driver module.

A LED lamp bulb includes an envelope having a tubular neck, a LED driver module including a cladding layer-wrapped circuit board press-fitted into the tubular neck of the envelope in a watertight manner, a LED circuit assembly supported on the circuit board-wrapped circuit board and suspending in the envelope and positive and negative lead wires respectively connected to the cladding layer-wrapped circuit board and disposed outside the envelope, and a lamp head bonded to the outer peripheral wall of the tubular neck of the envelope with the center contact thereof electrically connected with the positive lead wire of the LED driver module and the ring contact thereof electrically connected with the negative lead wire of the LED driver module.

A light bulb apparatus includes a cap connector, a light source, a heat sink module, a bulb shell and a reflective layer. The cap connector is used for connecting to an external power source. The bulb shell has a bottom part and a neck part. The reflective layer is disposed at the bottom part of the bulb shell for guiding a first light emitted from the LED module on the reflective layer to escape from the neck part of the bulb shell.

A light bulb apparatus includes a cap connector, a light source, a heat sink module, a bulb shell and a reflective layer. The cap connector is used for connecting to an external power source. The bulb shell has a bottom part and a neck part. The reflective layer is disposed at the bottom part of the bulb shell for guiding a first light emitted from the LED module on the reflective layer to escape from the neck part of the bulb shell.

An LED light module comprises an emitting portion; at least one LED package; a back cover; and an end cap. The emitting portion defines a first curved surface. The first curved surface extends a first length along a cylindrical axis defined by the LED light module. The back cover defines a second curved surface extending the first length along the cylindrical axis. The first curved surface and the second curved surface define a perimeter of the LED light module. In a cross-section of the LED light module taken in a plane substantially perpendicular to the cylindrical axis, the perimeter is substantially ovular, elliptical and/or tear-drop shaped. The end cap is substantially ovular, elliptical and/or tear-drop shaped, and comprises a coupling element configured to electrically and/or mechanically couple the LED light module to a subsequent LED light module or to a fixture.