An LED filament, comprising a plurality of light-emitting chips, a metal electrical terminal, a fluorescent glue, an insulating substrate and an electrically and magnetically conductive connector. The plurality of light-emitting chips are connected in series, and encapsulated and fixed on a surface of the insulating substrate by the fluorescent glue, one face of the electrically and magnetically conductive connector is fitted on the other surface of the insulating substrate, the metal electrical terminal is electrically connected to a light-emitting chip at one end of the insulating substrate. Also provided is an LED filament light, comprising a plurality of LED filaments and a permanent magnet. The LED filaments are magnetically and movably connected by means of magnetic attraction via the permanent magnet, and are capable of automatic sliding adjustment during thermal expansion and elongation.

An LED filament comprising a plurality of LED filament units, each of the plurality of LED filament units includes a LED chip with an upper surface and a lower surface opposite to the upper surface of the LED chip, and a light conversion layer comprising a top layer and a base layer, and the base layer comprises an upper surface and a lower surface opposite to the upper surface of the base layer, where the top layer with an upper surface and a lower surface opposite to the upper surface of the top layer is disposed on at least two sides of each of the LED chips, the lower surface of each of the LED chips is close to the upper surface of the base layer, and the upper surface of the top layer is away from each of the LED chips.

Area lighting with a luminaire constructed from an array of light-emitting diodes (LEDs) distributed along the convex surface segment of an elliptic torus provides a uniform light output to the surrounding area.

A light-emitting diode (LED) light source includes a plurality of electricity-conducting holding elements, and each electricity-conducting holding element is made of a thin metal sheet. The bendable LED light source increases installation of sufficient number of LED dies by lengthening the length of the LED light source. The LED light source is bent to form a spring-like helical structure and then is placed inside a lamp cover. The helical LED light source is fastened on a T-shaped element by a plurality of fastening elements and the T-shaped element is fixed on an insulated holder. Accordingly, a bulb-type LED lamp is implemented.

A light emitting diode (LED) bulb includes a connecting body, a lamp cap located at a first end of the connecting body, a mounting base located at a second end of the connecting body opposite to the first end, a plurality of LED modules mounted on the mounting base and a sheath assembled to the second end of the connecting body. The sheath includes a first portion and a second portion detachably engaged with the first portion to cooperatively define an enclosed space enclosing the mounting base and the LED modules therein.

An LED filament, comprising: an enclosure; a linear array of LED devices; and an electrical connector, wherein: the enclosure includes an optically transmissive binder; and the linear of LED devices is conformally wrapped around by the enclosure to be operable to emit light when energized through the electrical connector.

An LED light bulb includes a bulb shell, a bulb base, a stem, conductive supports, an LED filament, and a supporting arm. The bulb base is connected to the bulb shell. The stem is connected to the bulb base. The conductive supports are connected to the stem. The LED filament includes a filament body and two conductive electrodes. The conductive electrodes are at two ends of the filament body and connected to the conductive supports. The filament body is around the stem. The supporting arm is connected to the stem and the filament body. In a height direction of the LED light bulb, H is a distance from a bottom to a top of the bulb shell. A first height difference is defined between the two conductive electrodes and is from 0 to 1/10H. The filament body is curved to form a highest point and a lowest point. A second height difference is defined between the highest point and the lowest point. The first height difference is less than the second height difference.

A light-emitting diode filament lamp contains: a lamp cap, a transparent housing, at least one filament support, and at least one light-emitting diode (led) filament. The lamp cap is electrically connected with an external power supply so as to supply power to the at least one led filament, the transparent housing is hollow and includes an opening, and each filament support includes a first metal post electrically connected with a positive terminal and includes a second metal post electrically connected with a negative terminal. Each led filament includes a first electrode pin electrically connected with the first metal post and includes a second electrode pin electrically connected with the second metal post. Any one of graphene, borazon (bn) and thermally conductive ceramic powders is coated on each of the first metal post and the second metal post so as to form a black body radiation layer.

A light emitting heat dissipating structure form configured to improve light emission coverage and uniformity and save energy.

An LED lighting array for illuminating an area with the lighting array comprising a plurality of LED devices set in conical or elliptically conical reflectors, each of which is mounted upon a plate, each of which may be set at various angles to one other, and each of which is backed by a series of elements, first a copper support element, then an optional layer of graphite foam, followed by an aluminum plate, and then an arrangement of copper fins operably lined to a thermal mass mate. The copper support element includes support planes that are off-set relative to each adjacent plate and are in at least three different planes relative to each other. The backing plates may efficiently dissipate heat produced by the LEDs. The apparatus can be mounted upon a stand to illuminate an area such as a portion of a car park, building entrance or the like.