A current amplifying circuit includes a first FET transistor, a light receiving unit and a functional unit. The light receiving unit is connected with a first gate terminal of the first FET transistor through an enabling line. The functional unit is connected with a second conduction terminal of the first FET transistor. When the light receiving unit absorbs a light beam, a forward photoelectric current or a reverse photoelectric current is generated. The forward photoelectric current or the reverse photoelectric current flows to the first gate terminal through the enabling line. Consequently, an enabling voltage at the first gate terminal is increased and the first FET transistor is turned on. When the first FET transistor is turned on, an enabling current flows through the first FET transistor to enable the functional unit.

A current amplifying circuit includes a first FET transistor, a light receiving unit and a functional unit. The light receiving unit is connected with a first gate terminal of the first FET transistor through an enabling line. The functional unit is connected with a second conduction terminal of the first FET transistor. When the light receiving unit absorbs a light beam, a forward photoelectric current or a reverse photoelectric current is generated. The forward photoelectric current or the reverse photoelectric current flows to the first gate terminal through the enabling line. Consequently, an enabling voltage at the first gate terminal is increased and the first FET transistor is turned on. When the first FET transistor is turned on, an enabling current flows through the first FET transistor to enable the functional unit.

An area light including a first end, a second end opposite the first end, a central axis extending between the first and second end, at least one handle that is mounted between the first and second end, a housing disposed adjacent to the first end, and a hook pivotably coupled to the housing and moveable between a stored position, in which the hook lies flat against the housing, and an active position, in which the hook extends away from the housing. The area light further includes a light assembly disposed between the housing and the second end, a battery receptacle that receives a battery along a path that is perpendicular to the central axis, and a diffuser surrounding the light assembly and coupled to the housing. The diffuser tapers circumferentially inward toward the central axis along a direction from the housing to the second end.

An area light including a first end, a second end opposite the first end, a central axis extending between the first and second end, at least one handle that is mounted between the first and second end, a housing disposed adjacent to the first end, and a hook pivotably coupled to the housing and moveable between a stored position, in which the hook lies flat against the housing, and an active position, in which the hook extends away from the housing. The area light further includes a light assembly disposed between the housing and the second end, a battery receptacle that receives a battery along a path that is perpendicular to the central axis, and a diffuser surrounding the light assembly and coupled to the housing. The diffuser tapers circumferentially inward toward the central axis along a direction from the housing to the second end.

The present disclosure relates to a method of manufacturing a tamper proof light emitting module comprising the steps of (a) pre-assembling the light emitting module into a testing configuration including a housing and one or more light emitting elements mounted within the housing, the housing including first and second housing components connected together using at least one removable fastener connecting the first and second housing components; (b) testing the light emitting module to confirm the light emitting elements are operable; (c) after step (b), removing the removable fastener; (d) replacing the removable fastener removed in step (c) with at least one breakaway fastener; and (e) tightening the breakaway fastener(s) until the head of the breakaway fastener(s) breaks off so that the breakaway fastener(s) is no longer removable, thereby creating a final, tamper proof configuration of the light emitting module.

The present disclosure relates to a method of manufacturing a tamper proof light emitting module comprising the steps of (a) pre-assembling the light emitting module into a testing configuration including a housing and one or more light emitting elements mounted within the housing, the housing including first and second housing components connected together using at least one removable fastener connecting the first and second housing components; (b) testing the light emitting module to confirm the light emitting elements are operable; (c) after step (b), removing the removable fastener; (d) replacing the removable fastener removed in step (c) with at least one breakaway fastener; and (e) tightening the breakaway fastener(s) until the head of the breakaway fastener(s) breaks off so that the breakaway fastener(s) is no longer removable, thereby creating a final, tamper proof configuration of the light emitting module.

A high voltage controller contains: a casing and a wire receiving orifice defined on a predetermined position of the casing and configured to receive a preferred wire and to connect with a predetermined light-emitting diode (LED) light source. The casing further includes an electric circuit board accommodated therein, and the electric current board includes a wave filter, a rectifier, an inverter which are arranged from a voltage input end to a voltage output end of the electric circuit board, such that the wave filter and the rectifier rectify electric currents, and an alternating current (AC) voltage is rectified into a direct current (DC) voltage. The inverter includes at least one transistor arranged in a matrix so as to invert into the AC voltage, and the AC voltage is outputted, hence the AC voltage and the DC voltage are transformed repeatedly to obtain no-shaking lights.

A high voltage controller contains: a casing and a wire receiving orifice defined on a predetermined position of the casing and configured to receive a preferred wire and to connect with a predetermined light-emitting diode (LED) light source. The casing further includes an electric circuit board accommodated therein, and the electric current board includes a wave filter, a rectifier, an inverter which are arranged from a voltage input end to a voltage output end of the electric circuit board, such that the wave filter and the rectifier rectify electric currents, and an alternating current (AC) voltage is rectified into a direct current (DC) voltage. The inverter includes at least one transistor arranged in a matrix so as to invert into the AC voltage, and the AC voltage is outputted, hence the AC voltage and the DC voltage are transformed repeatedly to obtain no-shaking lights.

A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage V.sub.OUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.

A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage V.sub.OUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.