Abstract: The present invention relates to monobactam compounds of Formula I: and pharmaceutically acceptable salts thereof. The present invention also relates to compositions which comprise a monobactam compound of structural formula I or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier. The invention further relates to methods for treating a bacterial infection comprising administering to the patient a therapeutically effective amount of a compound of structural formula I, either alone or in combination with a therapeutically effective amount of a second beta-lactam antibiotic.

Abstract: An LED lamp includes a heat sink, an LED module received in the heat sink, a lamp holder disposed on a top end of the heat sink and covering the LED module, and a clip coupled to the lamp holder for securing the lamp holder to the heat sink. An annular fixing portion extends from a bottom of the lamp holder and surrounds a periphery of the top end of the heat sink. The clip hoops the fixing portion of the lamp holder and has a plurality of engaging portions extending through the fixing portion and inserted into the engaging slots of the heat sink correspondingly.

Abstract: An LED lamp includes a heat sink, an LED module, a driving circuit module, a top cover, and a bottom cover. The LED module is mounted on a top side of the heat sink. The driving circuit module is mounted on a bottom side of the heat sink. The top cover is slidably engaged with the heat sink and covers the LED module. The bottom cover is sliably engaged with the heat sink and covers the driving circuit module.

Abstract: An LED illuminator includes an illuminator base and at least two LED lamp units inclinedly disposed on a surface of the illuminator base. Each of the LED lamp units includes a heat dissipation structure and LEDs oriented downwardly and outwardly. A U-shaped fixing element is secured to a center of the illuminator base. The LED lamp units are connected with sidewalls of the fixing element.

Abstract: An LED lamp comprises a heat sink, a plurality of LED modules respectively disposed at two opposite sides of the heat sink, a casing attached to a front of the heat sink, two envelopes respectively located at the two opposite lateral sides of the heat sink and covering the LED modules therein and a holder connecting the casing for holding the LED lamp in position.

Abstract: An LED lamp includes a lamp frame, a reflector received in the lamp frame, a plurality of LED modules received in the lamp frame and an envelope covering an opening of the lamp frame. The lamp frame is made of a material with a good heat conductivity and thermally connects the LED modules. The reflector includes a plurality of interconnecting reflecting cells, each reflecting cell separating a corresponding LED module from others. Each LED module faces to a corresponding reflecting cell and light emitted therefrom is reflected by the reflecting cell to radiate out of the envelope.

Abstract: An LED lamp assembly includes a lighting pole and an LED lamp mounted on the lighting pole. The lighting pole includes a holding cylinder, a plurality of light-guiding plates received in the holding cylinder and a light emitting member surrounded by the light-guiding plates. The holding cylinder defines a plurality of through holes in a circumference sidewall thereof. A sensor is connected to the LED lamp, whereby the LED lamp lightens only when an object moves approaching the LED lamp assembly. Each light-guiding plate is semitransparent. Light generated by the light emitting member partly transmits through a corresponding light-guiding plate and partly reflected thereby, whereby the lighting pole radiates an even light through the holes thereof. The lighting pole constantly radiates the even light during the operation of the LED lamp assembly.

Abstract: A solar LED lamp for lighting purpose includes a fixing box, a covering member mounted on the fixing box and a plurality of LED modules attached to a bottom of the covering member. The covering member includes a top plate fixed to a top of the fixing box, a solar panel disposed over a top surface of the top plate and a mounting bracket fixed to a bottom of the top plate and located in front of the fixing box. The LED modules are attached to a bottom of the mounting bracket. The solar panel is provided for receiving solar energy and converting the solar energy into electrical energy which is used to activate the LED modules.

Abstract: A waterproof fastening assembly secures a first structure to a second structure. The first structure defines a number of through holes and a number of flanges surrounding the through holes, respectively. The second structure defines a number of screw holes and includes a number of LED light source modules. A connection shank extends through a corresponding through hole and screws in a corresponding screw hole. An elastic waterproof ring comprises an annular body and a number of protrusions protruding from a top surface of the body. When the first structure is secured to the second structure, the connection shank presses the protrusions to enable the elastic waterproof ring to deform outwardly and inwardly simultaneously. The flange of the first structure resists the outward deformation of the elastic waterproof ring, meanwhile the body of the elastic waterproof ring inwardly engages the connection shank.

Abstract: An LED lamp fixed to an end of a fixing rod, includes a casing, a heat dissipating member fixed to a bottom of the casing and a plurality of LED modules attached to a bottom of the heat dissipating member. The casing has a sleeve part and a mounting part integrally extending from an end of the sleeve part. A plurality of connecting plates extend inwardly along radial directions from an inner wall of the sleeve part. The fixing rod is inserted into the sleeve part of the casing and secured within free, inner ends of the connecting plates.

Abstract: An LED lamp includes a bracket, a supporting plate mounted on the bracket, and a plurality of LED modules mounted on the supporting plate. The bracket includes a bottom plate, two sidewalls and two engaging portions. The two sidewalls respectively connect to two opposite sides of the bottom plate and extend upwardly from the bottom plate. Two protruded portions respectively obliquely extend from inner surfaces of the two sidewalls to define two grooves therebelow, respectively. The supporting plate has two opposite sides respectively slidably received in the grooves. A bottom surface of the supporting plate thermally contacts with a top surface the bottom plate. The LED modules are mounted on a top surface of the supporting plate.

Abstract: An LED lamp includes a housing, a heat sink received in the housing, a plurality of LED modules thermally attached to the heat sink and a plurality of wire clips spanning over the heat sink and securing the heat sink on the housing. The heat sink includes a base and a plurality of fins extending from the base. Each of the clips includes a pivoting portion pivotally mounted on the housing, two locking portions located opposite to the pivoting portion and detachably engaging with the housing, and two pressing portions respectively interconnecting the pivoting portion with the two locking portions and abutting against the base.

Abstract: An LED lamp assembly includes a lamp supporter and an LED lamp supported by the lamp supporter. The LED lamp includes a lamp cover defining a first opening, a reflector received in the lamp cover and defining a second opening, a heat sink secured to a top of the lamp cover and a plurality of LED modules attached on the heat sink. The heat sink has a plurality of heat-conducting faces formed on a periphery thereof and the LED modules are attached on the heat-conducting faces to generate a wide illumination. The heat sink defines a through hole. Heat generated by the LED modules is absorbed by the heat-conducting faces and directly dissipated to an exterior through the first opening of the lamp cover. The first and second openings and the through hole of the heat sink are communicated with each other.

Abstract: An LED lamp includes a heat sink, a plurality of LED modules attached to the heat sink, and an envelope disposed on the base of the heat sink. The heat sink includes a base and a plurality of fins extending from the base. The envelope defines a receiving groove therein surrounding the LED modules. The receiving groove is stepped to have an upper portion and a lower portion recessed downwardly from a bottom of the upper portion. The LED lamp further includes an annular waterproof gasket. The waterproof gasket includes a main body received in the upper portion of the receiving groove and an engaging portion protruding downwardly from a bottom thereof and engagingly received in the lower portion of the receiving groove. The lower portion and the upper portion of the receiving groove are both rectangular in cross-section.

Abstract: An LED lamp includes a bracket, two guiding plates and a number of LED assemblies. Each of the guiding plates includes a body, a top flange and a bottom flange extending from top and bottom edges of the body, respectively. The bottom flanges are mounted on opposite sides of the bracket. The top flanges are oriented towards each other. The LED assemblies are mounted to the bracket and sandwiched between the bodies of the guiding plates. The LED assemblies slide along a longitudinal direction of the guiding plates before the LED assemblies are assembled to the bracket by screwing the LED assemblies to the guiding plates. The quantity of the LED assemblies assembled to the bracket is selective thereby to meet different luminous density requirements/specifications.

Abstract: An LED lamp includes a heat sink having a planar base, a plurality of LED modules attached to a bottom face of the base, an envelope disposed on the bottom face of the base and covering the LED modules, and a lamp bracket securing the base and the envelope together. The lamp bracket includes a vertical frame which defines an opening at a lateral side thereof, an engaging flange extending from an inner face of the frame and supporting a fixing flange of the envelope, and a plurality of protrusions projecting from the inner face of the frame above the engaging flange and pressing the base downwardly towards the envelope. The base of the heat sink and the envelope are inserted into the vertical frame through the opening.

Abstract: An LED lamp includes a housing defining an opening, an LED module received in the housing, a light-guiding cover covering the LED module and a transparent plate hermetically coupled to the housing via glue. The housing includes a main body, a pair of lateral plates secured to two opposite ends thereof and a pair of cushioning plates tightly sandwiched between the lateral plates and the two opposite ends of the main body. Each cushioning plate defines a recessed side edge, whereby two opposite end edges of the transparent plate, the recessed side edges and tops of the lateral plates cooperatively define a pair of receiving grooves at the two opposite ends of the main body of the housing. An outer edge of the transparent plate is hermetically coupled to the housing via glue filled in the receiving grooves.

Abstract: A heat dissipation device (10) includes a first heat sink (20), a second heat sink (30) and a heat pipe (40) transferring heat from the first heat sink to the second heat sink. A bracket (50) includes a first end (51) attached to the first heat sink and a second end (52) attached to the second heat sink.

Abstract: An LED lamp includes a heat sink, a plurality of LED modules mounted on a top of the heat sink and a plurality of light-guiding modules respectively fixed on the LED modules. The heat sink includes a base and a plurality of fins extending downwardly from the base. Each LED module includes a plurality of LEDs mounted thereon. Each light-guiding module includes a mounting bracket defining a plurality of through holes therein and a plurality of guiding units respectively received in the through holes of the mounting bracket. The guiding units are respectively in alignment with the LEDs of a corresponding LED module and receive the LEDs in lower ends thereof to reflect and guide light generated by the corresponding LED module in a predetermined manner.

Abstract: An LED lamp includes a housing, a bracket snugly received in the housing, a connecting member fixed to a top of the bracket, a heat sink standing on a top of the connecting member, a plurality of LEDs attached an outer surface of the heat sink and an envelope which is placed on the top of the connecting member, encloses the heat sink and the LEDs therein and engages with the housing. The bracket has a connecting plate. A plurality of electronic components is mounted on a front side of the connecting plate and a plurality fins extending from a rear side of the connecting plate. A covering panel is used to cover an opening of the bracket in front of the connecting plate.