Abstract: A ceiling light fixture includes a housing forming a channel having a trapezoidal cross section and a light-transmitting cover panel fixed in and covering the channel. The channel has a bottom wall forming a slot. A circumferential mounting frame is formed on a back of the bottom wall of the channel and barbs extend from the mounting frame. The bottom wall further forms a fitting hole. The ceiling light fixture selectively receives a first lamp assembly in the mounting frame and secures the lamp assembly with the barbs so that a light source of the lamp assembly is exposed through the slot for irradiating light or alternatively an end seat of a lamp tube is fit and retained in the fitting hole to set and fix the lamp tube in the slot to realize interchangeable use of the ceiling light fixture with different lamp assemblies.

Abstract: A light-emitting diode stacked lighting core includes a core top board, a core bottom board, and vertical boards, all being circuit boards. The core top board and the vertical boards are provided with light-emitting diodes and the core bottom board is provided with a circuit that is formed of a rectifier and a voltage reduction element and having two terminals extending outward. The vertical boards form extended fitting tabs and the core top board and the core bottom board respectively form openings corresponding to the fitting tabs to receive the fitting tabs to fit therein and to be fixed thereto by means of soldering, whereby the light-emitting diodes of the core top board and the vertical boards are put in electrical connection with each other to form the lighting core that is receivable and fixed in a light-transmitting enclosure.

Abstract: A ceiling light fixture includes a housing forming a channel having a trapezoidal cross section and a light-transmitting cover panel fixed in and covering the channel. The channel has a bottom wall forming a slot. A circumferential mounting frame is formed on a back of the bottom wall of the channel and barbs extend from the mounting frame. The bottom wall further forms a fitting hole. The ceiling light fixture selectively receives a first lamp assembly in the mounting frame and secures the lamp assembly with the barbs so that a light source of the lamp assembly is exposed through the slot for irradiating light or alternatively an end seat of a lamp tube is fit and retained in the fitting hole to set and fix the lamp tube in the slot to realize interchangeable use of the ceiling light fixture with different lamp assemblies.

Abstract: A light-emitting diode stacked lighting core includes a core top board, a core bottom board, and vertical boards, all being circuit boards. The core top board and the vertical boards are provided with light-emitting diodes and the core bottom board is provided with a circuit that is formed of a rectifier and a voltage reduction element and having two terminals extending outward. The vertical boards form extended fitting tabs and the core top board and the core bottom board respectively form openings corresponding to the fitting tabs to receive the fitting tabs to fit therein and to be fixed thereto by means of soldering, whereby the light-emitting diodes of the core top board and the vertical boards are put in electrical connection with each other to form the lighting core that is receivable and fixed in a light-transmitting enclosure.

Abstract: A gain structure of an LED is disclosed. The structure comprises an LED seat block, a plurality of square LEDs, and two layered transparent hood, characterized in that the conductive pins of the LEDs are soldered to corresponding conductive wire of the seat block and the first transparent hood covers the tip of the square LEDs, and the tip of the LEDs is provided with a convex lens, the surrounding of the convex lens is protruded to urge the transparent rim of the tip of the LEDs and the external of the first transparent hood is provided with a second transparent hood and the internal surrounding of the second transparent hood is provided with a transparent internal teeth strap, and the center of the top of the second transparent hood is formed into a convex lens.