A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.

A portable light including an elongate body having a first end and a second end, a plurality of extension poles slidably received in the elongate body, a light head pivotably coupled to an end of one of the plurality of extension poles, and a head assembly housing fixed to the first end of the elongate body. The portable light further includes a collar positioned around a portion of the elongate body, a movable handle coupled to the collar, and a plurality of legs pivotably coupled to the collar. Each leg includes a first end hingedly coupled to the collar. Each leg is also pivotally coupled to the second end of the elongate body by a leg link, wherein each leg link includes a pair of parallel members connected together by an offset portion, and wherein the offset portion extends perpendicularly from a longitudinal axis of the leg link.

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.

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.

A lighting fixture includes a housing, a first light source, a light guide plate, and a second light source. The housing has an inner cavity and a mounting hole, the mounting hole communicates the inner cavity with an external environment of the housing, the light guide plate is installed in the mounting hole. A side of the light guide plate faces the inner cavity, the other side of the light guide plate faces an outside of the housing. The second light source projects second light to the light guide plate, the second light is capable of being projected to the outside of the housing through the light guide plate. The first light source projects first light, and is configured such that the first light is projected to the outside of the housing through the light guide plate, and the housing is a non-light-transmitting housing.

It is described herein various embodiments of a holder for a light source. In some embodiments, the holder comprises a first arm and a second arm with each arm attached to a pivot member (300) having a pivot member central axis. In other embodiments, the holder comprises a housing attached to a first planar surface of a mounting base with a first bracket attached to a second planar surface of the mounting base proximate with a mounting base first end and a second bracket attached to the second planar surface of the mounting base proximate with a mounting base second end which is opposite the mounting base first end.

It is described herein various embodiments of a holder for a light source. In some embodiments, the holder comprises a first arm and a second arm with each arm attached to a pivot member (300) having a pivot member central axis. In other embodiments, the holder comprises a housing attached to a first planar surface of a mounting base with a first bracket attached to a second planar surface of the mounting base proximate with a mounting base first end and a second bracket attached to the second planar surface of the mounting base proximate with a mounting base second end which is opposite the mounting base first end.

A portable light for attaching to an object or wearing on a user's neck is disclosed having a flexible member adapted to be attached to the object or to fit around a user's neck, body members at each end of the flexible member each having a light source, a power source and an on/off switch.