Abstract: A lamp includes a housing, a heat dissipating plate, a circuit unit, and a heat distributing unit. The housing includes a housing body surrounding an axis and having an opening. The heat dissipating plate is disposed in the housing body and has a peripheral portion contacting the housing body. The circuit unit is disposed in the housing body, and includes a base plate coupled to the heat dissipating plate, and a light emitting unit mounted to the base plate opposite to the heat dissipating plate. The heat distributing unit is disposed in the housing body, and includes a heat conducting bar coupled to the heat dissipating plate opposite to the circuit unit, and further coupled to a heat distributing plate opposite to the heat dissipating plate. The heat distributing plate has a plate periphery contacting the housing body.

Abstract: An illumination apparatus includes a heat-conductive tubular housing. A lighting device includes: a heat dissipating plate positioned in the housing and disposed adjacent to an open front end of the housing; lighting units, each having a light emitting diode mounted on a circuit board in thermal contact with the heat dissipating plate, and a condensing member mounted on the circuit board and disposed around the light emitting diode; and a driving unit disposed fixedly in the housing, connected electrically to the circuit board, and coupled electrically to an external power source for activating the light emitting diodes. A seal washer is disposed among and abuts against the housing, a transparent plate in front of the lighting units, and an annular cap mounted on the front end of the housing, so as to establish a liquid-tight seal thereamong.

Abstract: A LED lamp includes a housing, a circuit unit, and a cover plate. The housing includes a housing body surrounding an axis and having an opening. The circuit unit is disposed in the housing body, and includes a base plate that has a first plate surface facing the opening in the housing body, and a light emitting unit that is mounted to the first plate surface of the base plate. The cover plate is disposed in the housing body between the base plate of the circuit unit and the opening in the housing body, and is formed with a through hole unit corresponding in position to the light emitting unit of the circuit unit.

Abstract: A lamp includes a housing, a heat dissipating plate, a circuit unit, and a heat distributing unit. The housing includes a housing body surrounding an axis and having an opening. The heat dissipating plate is disposed in the housing body and has a peripheral portion contacting the housing body. The circuit unit is disposed in the housing body, and includes a base plate coupled to the heat dissipating plate, and a light emitting unit mounted to the base plate opposite to the heat dissipating plate. The heat distributing unit is disposed in the housing body, and includes a heat conducting bar coupled to the heat dissipating plate opposite to the circuit unit, and further coupled to a heat distributing plate opposite to the heat dissipating plate. The heat distributing plate has a plate periphery contacting the housing body.

Abstract: A water-resistant illumination apparatus includes a lighting device disposed in a transparent barrel and between a positioning seat and a positioning sleeve that are mounted in the barrel and that are disposed respectively adjacent to opposite first and second open ends of the barrel. The lighting device includes a circuit board mounted on a mounting seat that abuts against the positioning seat and the positioning sleeve, condensing members that are disposed respectively around LEDs, and a driving unit disposed in the barrel for activating the LEDs. A first seal washer is disposed among and abuts against the barrel, the positioning seat, and a first cap pressed-fitted within the first open end of the barrel. A second seal washer is disposed among and abuts against the barrel, the positioning sleeve, and a second cap pressed-fitted with in the second open end of the barrel.

Abstract: An illumination apparatus includes a heat-conductive tubular housing. A lighting device includes: a heat dissipating plate positioned in the housing and disposed adjacent to an open front end of the housing; lighting units, each having a light emitting diode mounted on a circuit board in thermal contact with the heat dissipating plate, and a condensing member mounted on the circuit board and disposed around the light emitting diode; and a driving unit disposed fixedly in the housing, connected electrically to the circuit board, and coupled electrically to an external power source for activating the light emitting diodes. A seal washer is disposed among and abuts against the housing, a transparent plate in front of the lighting units, and an annular cap mounted on the front end of the housing, so as to establish a liquid-tight seal thereamong.

Abstract: A waterproof lighting device includes a tubular transparent casing, a lamp circuit, and first and second end caps mounted to opposite open ends of the casing so as to close the opposite open ends of the casing. The lamp circuit includes a lamp board mounted on a curved base plate, a receiving space defined between the lamp board and the base plate, a light emitting member mounted on the lamp board, a ballast disposed in the receiving space and connected electrically to the light emitting member, and a power cord having one end coupled electrically to the lamp board, and an opposite end extending through the first end cap and terminated by a power plug.

Abstract: A waterproof lighting device includes a tubular transparent casing, a lamp circuit, and first and second end caps mounted to opposite open ends of the casing so as to close the opposite open ends of the casing. The lamp circuit includes a lamp board mounted on a curved base plate, a receiving space defined between the lamp board and the base plate, a light emitting member mounted on the lamp board, a ballast disposed in the receiving space and connected electrically to the light emitting member, and a power cord having one end coupled electrically to the lamp board, and an opposite end extending through the first end cap and terminated by a power plug.