A tamper resistant nightlight for placement in an electrical receptacle, the nightlight includes a body that has a base with an LED circuit and plug blades extending from the body. A housing includes a locking element configured to restrict a child from removing the nightlight from the electrical receptacle through a flange that extends away from the body to be positioned behind a rear surface of an electrical wall plate associated with the electrical receptacle to prevent the tamper resistant nightlight from being removed from the electrical receptacle while the electrical wall plate is coupled to the electrical receptacle.

A tamper resistant nightlight for placement in an electrical receptacle, the nightlight includes a body that has a base with an LED circuit and plug blades extending from the body. A housing includes a locking element configured to restrict a child from removing the nightlight from the electrical receptacle through a flange that extends away from the body to be positioned behind a rear surface of an electrical wall plate associated with the electrical receptacle to prevent the tamper resistant nightlight from being removed from the electrical receptacle while the electrical wall plate is coupled to the electrical receptacle.

The invention provides a waterproof lamp, which comprises a waterproof lamp body, wherein a switch is arranged on the waterproof lamp body, a waterproof switch structure is arranged at the switch, and the switch is arranged in an inner cavity of the waterproof switch structure; the invention also relates to a working method for the waterproof lamp. The waterproof lamp is provided with the waterproof switch structure at the switch, the waterproof switch structure comprises a waterproof sleeve and a fixing sleeve, and the structures and connection mode of the waterproof sleeve, the fixing sleeve and the waterproof lamp body ensure the sealing of the waterproof lamp at the switch, so that the waterproof lamp can be used underwater for a long time; the working method of the waterproof lamp can avoid oxidation and rusting when the waterproof lamp is used underwater, and prolong its service life.

The invention provides a waterproof lamp, which comprises a waterproof lamp body, wherein a switch is arranged on the waterproof lamp body, a waterproof switch structure is arranged at the switch, and the switch is arranged in an inner cavity of the waterproof switch structure; the invention also relates to a working method for the waterproof lamp. The waterproof lamp is provided with the waterproof switch structure at the switch, the waterproof switch structure comprises a waterproof sleeve and a fixing sleeve, and the structures and connection mode of the waterproof sleeve, the fixing sleeve and the waterproof lamp body ensure the sealing of the waterproof lamp at the switch, so that the waterproof lamp can be used underwater for a long time; the working method of the waterproof lamp can avoid oxidation and rusting when the waterproof lamp is used underwater, and prolong its service life.

A lighting fixture for a Light Emitting Diode, LED, lighting device, said fixture comprising an LED driver arranged to receive an Alternating Current, AC, mains voltage as input and provide an LED current to drive said LED lighting device; at least one socket comprising receiving means, arranged to receive and hold an LED lamp arranged to emit light, said socket further comprising a biased Double Pole Double Throw, DPDT, switch, comprising one set of input terminals and two sets of output terminals, wherein the output of said LED driver is connected to said input terminals of said biased DPDT switch, wherein a first of said two output terminals of said biased DPDT switch are short circuited, and wherein said biased DPDT switch is arranged to toggle between a short circuit position wherein said input terminals of said biased DPDT switch are connected to said first set of output terminals, and a connected position wherein said input terminals of said biased DPDT switch are connected to a second of said two output terminals, thereby connecting said LED driver to said LED lighting device; wherein said biased DPDT switch is further arranged to toggle from said short circuit position to said connected position upon insertion of said LED lighting device into said receiving means of said socket. A corresponding method of toggling a switch is also presented herein.

An example system includes an optical element defining a first surface, and a substrate layer defining a second surface and a third surface opposite the second surface. The second surface of the substrate layer is adjacent the first surface the optical element. The system also includes a conductive trace disposed on the third surface of the substrate layer. The optical element is operable to emit light in a first direction through the substrate layer and the conductive trace. The conductive trace defines at least one of an aperiodic path or an irregular path.

The invention provides a light generating system (1000) comprising a light generating device (100), a luminescent material layer (200), and optics (400), wherein: (I) the light generating device (100) is configured to generate polarized laser radiation (101); (II) the luminescent material layer (200) comprises a luminescent material (210) configured in a light-receiving relationship with the light generating device (100) and configured to convert at least part of the polarized laser radiation (101) into luminescent material radiation (211); (III) the light generating system (1000) is configured to generate in an operational mode system light (1001) at least comprising the luminescent material radiation (211); (IV) the optics (400) comprise first optics (410) and second optics (420); wherein the first optics (410) are configured to change the polarization of the polarized laser radiation (101), and wherein the second optics (420) have one or more of (i) a polarization dependent transmission and (ii) a polarization dependent reflection for the polarized laser radiation (101); and (V) the light generating device (100) and the optics (200) are configured such that, relative to an optical path of the luminescent material radiation (211) emanating from the luminescent material (210), the second optics (420) are configured downstream from the first optics (410) and the luminescent material (210).

An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

A linear light fixture assembly for supporting a light fixture in a ceiling structure, comprises a light fixture mounting structure having a pair of opposed boundary regions configured to fit within a designated light fixture receiving region in the ceiling structure, and a plurality of spring elements configured to spaced outwardly from at least one of the boundary regions, each spring element having a mounting region configured to be anchored to the mounting structure and a free end region to extend therefrom and to be laterally outwardly biased in a first position to form a path of contact with a support surface region on the ceiling structure to anchor the structure in the receiving region, each of the spring elements configured to be movable toward the corresponding boundary region in a second position to release the path of contact to release the light fixture from the receiving region.