Abstract: A light-emitting device comprising a heat dissipation carrier, a circuit board, a light-emitting element, a side heat conduction plate, an insulation shell and a light cover is provided. The circuit board is disposed on the heat dissipation carrier. The light-emitting element is disposed on the circuit board. The light cover is directly engaged with the heat dissipation carrier. The side heat conduction plate is engaged with the heat dissipation carrier and comprises a transverse plate and a side plate. The transverse plate carries the circuit board. The side plate is connected with the transverse plate. The insulation shell covers the side plate of the side heat conduction plate.

Abstract: A light-emitting device comprising a heat dissipation carrier, a circuit board, a light-emitting element, a side heat conduction plate, an insulation shell and a light cover is provided. The circuit board is disposed on the heat dissipation carrier. The light-emitting element is disposed on the circuit board. The light cover is directly engaged with the heat dissipation carrier. The side heat conduction plate is engaged with the heat dissipation carrier and comprises a transverse plate and a side plate. The transverse plate carries the circuit board. The side plate is connected with the transverse plate. The insulation shell covers the side plate of the side heat conduction plate.

Abstract: A light-emitting device includes a single-piece heat dissipation element, a circuit board and an electroinsulating casing. The single-piece heat dissipation element includes a carrier portion and a fin portion. The circuit board is configured on the carrier portion. The electroinsulating casing encapsulates the carrier portion and the fin portion.

Abstract: A lighting apparatus including a base, a light cover, an optical element, and at least a light emitting element is provided. The light cover having a first opening is disposed on the base and together with the base forms a space. The optical element is fixed on the light cover and substantially covers the first opening of the light cover. The light emitting element is disposed in the space. A light emitted by the light emitting element passes through the optical element and emits from the light cover to form an illumination property of the lighting apparatus, wherein the light cover together with the optical element is movable with respect to the light emitting element. When the light cover and the optical element have different relative positions with respect to the light emitting element, the illumination properties are different.

Abstract: A Light Emitting Diode (LED) bulb includes a circuit board assembly, a base, a first LED light source module and a second LED light source module disposed on two opposite surfaces of the circuit board assembly, and a shell. The base includes a reflective surface. After passing through the shell, a first light beam emitted by the first LED light source module and a direct light beam emitted by the second LED light source module respectively form a first light distribution pattern and a third light distribution pattern. After being reflected by the reflective surface and emitted from the shell, a reflected light beam emitted by the second LED light source module forms a second light distribution pattern. The first light distribution pattern, the second light distribution pattern, and the third light distribution pattern superpose to each other to form an omni-directional light distribution pattern.