Abstract: An LED lighting device includes a seat having a baseplate, a sidewall, and an end wall. The first end of the sidewall is connected to a periphery of the baseplate and forms a chamber with the baseplate. The second end of the sidewall is connected to the end wall and forms a receiving space with the end wall. A light source containing a plurality of LED arrays is disposed in the chamber. An electric power source is disposed in the receiving space, and an optical assembly is disposed on the light source. The optical assembly includes a plurality of first optical members and a plurality of second optical members. Each of the first optical members covers one of the LED arrays. Each of the second optical members includes a set of optical walls surrounding one of the first optical members.

Abstract: This application describes systems and methods for facilitating memory access in flash drives. An example method performed by a memory controller may include receiving, from a host, a write command comprising data to be written into a flash memory; splitting the data into a first portion and a second portion; storing the first portion into a static random-access memory (SRAM) in the memory controller; storing the second portion into a dynamic random-access memory (DRAM) communicatively coupled with the memory controller; initiating a configuration operation corresponding to the write command; fetching the first portion from the SRAM and the second portion from the DRAM in response to the flash translation layer indicating a ready status to store the data into the flash memory; combining the fetched first portion and the fetched second portion; and storing the combined first portion and the second portion into the flash memory.

Abstract: A LED lighting device includes a seat having a baseplate and a sidewall, the sidewall forming a chamber with the baseplate. A light source disposed in the chamber and attached to a surface of the baseplate. An electric power source is disposed in the chamber and electrically connected to the light source and an optical assembly is disposed on the light source. The optical assembly includes an optical unit and an installing unit, the installing unit is connected to a periphery of the optical unit. The optical unit includes a plurality of first optical members and a plurality of second optical members, and the second optical members are interposed between two adjacent first optical members. The installing unit includes a wall portion surrounding the sidewall, and the wall portion includes a bending portion abutting against an end of the sidewall.

Abstract: An LED lighting device includes a seat, an optical assembly and a light source. The seat has a baseplate and a sidewall. A chamber is formed between the baseplate and the sidewall. The optical assembly completely covers a light-emitting side of the LED lighting device. The light source is disposed in the chamber of the seat and includes multiple LED arrays. Each LED array includes an LED chip. The optical assembly includes an optical unit. The optical unit includes multiple first optical members and multiple second optical members corresponding to the first optical members. The LED arrays correspond to the first optical members. Each first optical member possesses an effect of light diffusion resulting from its own material property. Each second optical member includes one or more sets of optical walls. Each set of optical walls surrounds one of the first optical members.

Abstract: An electric hydraulic floor jack includes a variable plunger structure provided on a motor base and an oil pump base. The variable plunger structure includes a piston hole formed in the oil pump base and communicating with an oil chamber and an oil inlet passage, a plunger sleeve provided at a port of the piston hole, a plunger slidably provided in the plunger sleeve, a U-shaped piston slidably provided in the piston hole, a valve trim slidably provided on the piston, a spring provided in the piston hole and sleeved on the valve trim, and an eccentric wheel provided on an output shaft of a speed reducer. The plunger is driven by the eccentric wheel in cooperation with the spring to continuously make a linear reciprocating motion, thereby continuously opening and closing the check valve, and pumping oil into the cylinder to push the piston rod for lifting work.

Abstract: An LED lighting device includes a seat, a light source, an electric power source and an optical assembly. The seat has a baseplate, a sidewall and an end wall. The first end of the sidewall connects to a periphery of the baseplate and forms a chamber with the baseplate, the second end of the sidewall connects to the end wall and forms a receiving space with the end wall. The chamber is separated from the receiving space by the sidewall. The light source is disposed in the chamber and attached to a surface of the baseplate. The light source comprises a plurality of LED arrays. The electric power source is disposed in the receiving space and the optical assembly is disposed on the light source. The optical assembly comprises a plurality of first optical members and a plurality of second optical members corresponding to the first optical members. Each one of the first optical members covers one of the LED arrays.

Abstract: The LED lighting device includes a seat comprising a baseplate and a sidewall, the sidewall forming a chamber with the baseplate; a light source disposed in the chamber and attached to a surface of the baseplate, the light source comprising a plurality of LED arrays; an electric power source disposed in the chamber and electrically connecting to the light source and an optical assembly disposed on the light source. The optical assembly comprises an optical unit and an installing unit, the installing unit connects to the periphery of the optical unit, wherein the optical unit comprises a plurality of first optical members and a plurality of second optical members, one of the first optical members covers one of the LED arrays and the second optical members interposed between two adjacent first optical members.

Abstract: An LED lighting device includes a seat, an optical assembly and a light source, according to one embodiment of the present invention. The seat has a baseplate and a sidewall. A chamber is formed between the baseplate and the sidewall. The optical assembly completely covers a light-emitting side of the LED lighting device. The light source is disposed in the chamber of the seat and includes multiple LED arrays. Each of the LED arrays includes an LED chip. The optical assembly includes an optical unit. The optical unit includes multiple first optical members and multiple second optical members corresponding to the first optical members. The LED arrays correspond to the first optical members. Each of the second optical members includes a set of optical walls. The set of optical walls surrounds one of the first optical members.

Abstract: An LED lighting device includes a seat, an optical assembly and a light source, according to one embodiment of the present invention. The seat has a baseplate and a sidewall. A chamber is formed between the baseplate and the sidewall. The optical assembly completely covers a light-emitting side of the LED lighting device. The light source is disposed in the chamber of the seat and includes multiple LED arrays. Each of the LED arrays includes an LED chip. The optical assembly includes an optical unit. The optical unit includes multiple first optical members and multiple second optical members corresponding to the first optical members. The LED arrays correspond to the first optical members. Each of the second optical members includes a set of optical walls. The set of optical walls surrounds one of the first optical members.