An LED high bay includes a housing, a hand-separable connector, and an LED driver disposed within the housing. The housing includes a first housing portion, a second housing portion hingedly attached to the first housing portion, and at least one hand-operable latch opposite the hinge and configured for fixing the second housing portion to the first housing portion. The LED driver may be replaced by opening the housing by releasing the latch and disconnecting the LED driver from the connector, while the LED high bay remains installed or held to a structure, or portion thereof, with a support member.

A light emitting device includes: a base; a light emitting element; a light reflective film located on an upper surface of the light emitting element; and a encapsulant. A ratio of a maximum width (W.sub.max) of the encapsulant with respect to a maximum width of the light emitting element, in a side view, is 2 or more. An outer shape of a part of the encapsulant located within a range of elevation angles that is in a range of 10° to 50° from a center of a mounting region at an upper surface of the base on which the light emitting element is mounted is formed to have a curved surface. A ratio (r/W.sub.max) of a radius of curvature (r) of the curved surface with respect to the maximum width (W.sub.max) of the encapsulant, in a side view, is in a range of 0.25 to 0.50.

Provided is a modular heat management apparatus for an out-door lighting system including a plurality of lighting elements, that includes a housing including an interface portion disposed at a top surface of the housing, an attachable heat sink to be disposed and mounted onto the interface portion and configured to dissipate heat generated by the outdoor lighting system, and a fixing element configured to attach the attachable heat sink to the interface portion and to apply contact pressure thereto.

A receiver speed ring configured to facilitate a safe way of mounting an associated light modifier to both a Balcar-type light source and a Bowens-type light source via a tube with outwardly protruding tabs as well as holes and slots that are punched into the tube, instead of the flared flange, which allows for a quick change between different light mounting systems (e.g., Balcar-type, Bowens-type) without obscuring or impeding a flash tube. The receiver speed ring includes a cylindrical hollow tube having a constant diameter and provided with a circumferential outer surface having a centrally registered longitudinal axis. The speed ring also includes a non-flared outer edge, a plurality of juxtaposed holes, a plurality of juxtaposed slots, and a plurality of juxtaposed outwardly protruding tabs are provided.

In a lighting arrangement, in particular for escape route lighting, comprising a light source and an optical element assigned to the light source, said optical element being designed to emit asymmetrically the light emitted by the associated light source, the optical element can be positioned in different ways.

A light shield includes a main portion and an overlap portion that is substantially perpendicular to the main portion. The main portion includes a first scored area and a base platform disposed below the first scored area. The first scored area includes a plurality of score lines that define one or more detachable panels. The overlap portion includes a second scored area and another base platform. The second scored area includes another plurality of score lines that define one or more detachable overlap panels. Further, the light shield includes a flange that extends substantially perpendicular to and along a length of a base platform of the light shield's main portion. A first interlocking arm extends from a first end of the flange and a second interlocking arm extends from a second end of the flange that is opposite to the first end.

The present invention concerns a lamp (1) having a number of plates (3, 4, 5). The plates (3, 4, 5) are moveable between a position where the plates (3, 4, 5) form a common outer surface and a position where the plates (3, 4, 5) are separated from each other. By means of the plates the shape and appearance of the lamp (1) may be amended between having the form of for instance a closed sphere and a more or less open form. The plates (3, 4, 5) are placed on upper and lower curved arms (17, 26). The curved arms (17, 26) are connected to an upper ring (10) and a lower ring (9). The curved arms (17, 26) are moved by movement of the lower ring (9) towards and away from the upper ring (10).

A lighting device, comprising a glow material; a light source, positioned to illuminate the glow material when the light source is activated; and a light source controller, for sequencing sufficient on and off activation of the light source to maintain activate the glow material over a period of time.

The present disclosure relates to a hand-held electric device with changeable head, includes an electrical hand-held part and a head. The electrical hand-held part has a hand-held body, an inner casing and an outer casing, the hand-held body has a first sealing ring located at the front end thereof, the inner casing is mounted at the front end of the hand-held body and the outer wall of is provided with a second sealing ring. The outer casing slides back and forth along the axis of the inner casing at the outside of the inner casing. The head includes a head body and an assembling and matching part disposed at the rear end of the head body, the assembly mating part is detachably assembled on the inner side of the inner casing, and the assembling and matching part is provided with a third sealing ring.