Petcup is a new product that works as a thermo beverage cup and turned up-side down works as a portable lamp/worklight. As a hot or cold beverage cup the light can be turned on before you set it on the table giving Petcup a one-of-a-kind look. When not being used as a beverage cup, it's a portable lamp/worklight that's light-weight and can go anywhere. You can twist the top and bottom off to wash or just twist the bottom off to change the batteries. Petcup is the only cup/lamp in the world and the only cup with a dual-use as a portable lamp.

A system may include a light source. A converter may be configured to convert an AC voltage to a DC operating voltage during normal operation. A power backup device may be coupled to the converter. A current source may have a first terminal configured to receive the DC operating voltage during regular operation and a second terminal configured to provide a pulse-width modulated (PWM) signal to an anode end of the light source. A switching device may have a first connecting terminal coupled to the anode end of the light source, a second connecting terminal coupled to the power backup device, and a control terminal coupled to the converter. The switching device may be configured to open a switch between the first connecting terminal and the second connecting terminal during normal operation and close the switch upon detecting an interruption of the DC operating voltage at the control terminal.

The LED and/or laser projection light device has three major project parts including (a) light source (b) image-forming-unit (c) project/refractive lens to make desired enlarge projected image, patterns or light beams. The project light has at least one of inner optics-lens or optics-elements rotating to create the splendid lighted image or patterns or light-beam to emit to outer-cover. Further, The project light preferred have at least one of additional-functions built-in project light device select from (i) 2.sup.nd light source for preferred illumination function(s), (ii) glow, back light, (iii) 2.sup.nd or more project assemblies in one light device, (iv) other light functions, (v) candle light illumination, (vi) bulb illumination, (vii) desk top or floor light illumination, (viii) having battery or rechargeable battery or built-in/outside AC-to-DC circuit to get power source, (ix) apply the USB port or adaptor or connector or AC-plug wire to get power source, (x) steady, rotating, replaceable, detachable, movable 3 major project parts.

A multifunction LED lighting device improves technical and functional performance compared to known lighting appliances, while also optimizing yield and satisfying demand for aesthetics and reduced consumption. The device includes: a lighting body including an LED assembly; a frame for connecting to the wall and supporting the at least a lighting body; an electrical connection and mechanical connection between the frame and the at least a lighting body; and an electronic circuit board for converting to low voltage and supplying power to the LED assembly. The lighting body is substantially L-shaped and includes an upright and a projecting arm. The upright includes the electrical connection and the mechanical connection, and the arm includes the LED assembly. The electrical connection and the mechanical connection include a connector of male/female type with reversible coupling.

Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.

The present disclosure provides an LED straight light including a light tube with two pins at both ends, an LED installed in the light tube and a driving circuit. The driving circuit includes a mains branch and a signal branch. The mains branch is coupled to the pins at one end of the light tube for transmitting power to the LED for power supply. The signal branch is coupled to the pins at the other end of the light tube for transmitting external driving signals to control the on/off of the mains branch. The LED straight light of the present disclosure is powered by two ends, one of the two ends supplies power to the LED through the mains branch, and the other end receives driving signals to control the on/off of the mains branch.

Lighting fixtures that include fixture housings and light-emitting diode (LED) modules configured for tool-less attachment and detachment to the fixture housings are disclosed. Certain LED modules include LED emitters, corresponding electronics for operating the LED emitters, and at least one shaped protrusion. Certain LED modules include safety tethers that are configured to provide mechanical support during the tool-less attachment and detachment. Lighting fixtures include a lens and removable endcaps that secure the lens to the fixture housing. Certain lighting fixtures include a backup battery and a button provided in one of the endcaps for testing the backup battery. Certain lighting fixtures include a cut-out portion in the fixture housing corresponding to the shaped protrusion of the LED module for providing identification of replacement LED modules that may be attached to fixture housings.

A brown-out detection apparatus including a voltage sensing circuit, a first circuit, and a second circuit. The voltage sensing circuit senses an input AC voltage having a first nominal input voltage value or a second nominal input voltage value. The voltage sensing circuit includes an output outputting a reference DC voltage proportional said input AC voltage. The first circuit is responsive to said output of said voltage sensing circuit. The first circuit includes a first output outputting a first voltage value when said input AC voltage is below a threshold voltage level and a second voltage value when said input AC voltage is above said threshold level. The second circuit is responsive to said first output. The second circuit includes a second output outputting a second control signal indicative of a brown-out condition of said input AC voltage.

LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

An emergency lighting unit includes a housing. The housing includes a base having a first portion and a second portion. A lamp assembly is rotatably connected to the housing and positioned in the lower portion. A cover is provided over the lamp assembly.