A lighting apparatus includes a central hub, and four panels hingedly attached to each side of the hub. Three panels have an LED array each. The fourth panel houses an array of solar cells, an ON/OFF switch, a rechargeable battery, and electronics. The four panels are independently positionable with respect to the hub. A motion detector is configured to operate the apparatus such that when motion is detected, the switch is in the ON position, and the solar cells do not detect ambient light above a predetermined base level, the device electronics turn the LEDs on; and when motion is not detected for a predetermined period, or the switch is in the OFF position, or the solar cells detect ambient light above the predetermined base level, the LEDs are powered off.

A lighting apparatus includes a central hub, and four panels hingedly attached to each side of the hub. Three panels have an LED array each. The fourth panel houses an array of solar cells, an ON/OFF switch, a rechargeable battery, and electronics. The four panels are independently positionable with respect to the hub. A motion detector is configured to operate the apparatus such that when motion is detected, the switch is in the ON position, and the solar cells do not detect ambient light above a predetermined base level, the device electronics turn the LEDs on; and when motion is not detected for a predetermined period, or the switch is in the OFF position, or the solar cells detect ambient light above the predetermined base level, the LEDs are powered off.

A light-receiving unit containing four optical sensors arranged crosswise and a light-shielding body containing four through-holes confronting light-receiving surfaces of the optical sensors, and a tilt adjustment mechanism containing first and second movable bodies which are mounted on first and second rotation shafts arranged on a same plane to cross at right angles are provided. The tilt adjustment mechanism is mounted in a housing constituting a ceiling-mounted type lighting device and the light-receiving unit and a lighting lamp are mounted on a rotational center axis of the second moving body. Tilt adjustment light emitted from a treatment table hits the optical sensors via the light-shielding body.

A light-receiving unit containing four optical sensors arranged crosswise and a light-shielding body containing four through-holes confronting light-receiving surfaces of the optical sensors, and a tilt adjustment mechanism containing first and second movable bodies which are mounted on first and second rotation shafts arranged on a same plane to cross at right angles are provided. The tilt adjustment mechanism is mounted in a housing constituting a ceiling-mounted type lighting device and the light-receiving unit and a lighting lamp are mounted on a rotational center axis of the second moving body. Tilt adjustment light emitted from a treatment table hits the optical sensors via the light-shielding body.

LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

The invention relates to the technical field of lighting, more particularly to a LED street light that includes a main body and a support arm connected to the main body. A female joint is provided at one end of the support arm close to the main body. A male joint is provided at one end of the main body close to the support arm. When installing the LED street light, the male joint and the female joint are mutually inserted to supply power to the main body, without arranging the circuits in the LED street light before installation, which greatly simplifies the installation process and reduces the installation time and the installation difficulty. In addition, due to the reduction of the installation time and installation difficulty, the safety hazards caused by the installation of the LED street lights can also be prevented, and safety is thus improved.

The invention relates to the technical field of lighting, more particularly to a LED street light that includes a main body and a support arm connected to the main body. A female joint is provided at one end of the support arm close to the main body. A male joint is provided at one end of the main body close to the support arm. When installing the LED street light, the male joint and the female joint are mutually inserted to supply power to the main body, without arranging the circuits in the LED street light before installation, which greatly simplifies the installation process and reduces the installation time and the installation difficulty. In addition, due to the reduction of the installation time and installation difficulty, the safety hazards caused by the installation of the LED street lights can also be prevented, and safety is thus improved.

A portable neck light for wearing on a user's neck is disclosed having a neck member adapted to fit around a user's neck, body members on each side of the neck member having a light source, a movable member between each end of the neck member and each body member allowing for the adjustment of each light source independently of the other, a power source and an on/off switch.

A portable neck light for wearing on a user's neck is disclosed having a neck member adapted to fit around a user's neck, body members on each side of the neck member having a light source, a movable member between each end of the neck member and each body member allowing for the adjustment of each light source independently of the other, a power source and an on/off switch.