A table lamp has a lighting head with an asymmetrical light output. The lighting head is reversibly mountable to a support structure, so that the light output can be adapted to be optimised for positioning on either side (left or right) of a table.

A counterweight arm mechanism having an adjustable dragline tension system capable of adjusting tension; the system comprising a dragline, an extension spring, and a dragline adjustment mechanism; the dragline adjustment mechanism adjusted the overall length of the dragline as a function of the rotation angle of a counterweight arm; the dragline length adjustment mechanism being implemented according to the two legs of a right-angled ΔABC and the property of a+b=2√2R sin(A+π/4); when the counterweight arm rotates, the mechanical structure can be used to drive the vertex of the right angle of the right-angled ΔABC to rotate along with the counterweight arm, and synchronously move in line with the circumcircle of the right-angled ΔABC, thus the tension on the counterweight arm from the adjustable dragline tension system changes with the rotation angle of the counterweight arm.

A table that includes a planar upper surface having a recess, a lamp positioned in the recess, a first sensor, and an embedded touch control. The lamp can be in a closed position or a raised position, and have a first section and a second section. The first section is attached to the planar upper surface at an end thereof. The first sensor detects the position of the lamp and controls the lamp based on the position of the lamp. The embedded touch control is located beneath the planar upper surface, and controls the light level of the lamp.

The disclosure discloses a multi-source homework lamp comprising: a first lampshade and a second lampshade connected to a shaft, wherein the first lampshade and the second lampshade are rotatable around the shaft; main lights disposed inside each of the lampshades; and a control unit for controlling the luminance of the main lights and controlling the rotation of the first lampshade and the second lampshade, thereby controlling the angle between the two. In the multi-source homework lamp according to the disclosure, by a design of the two-piece main lights with the angle being variable, the illuminance is caused to be more uniform, and the illumination range and the illumination luminance of the homework lamp may be adjusted more conveniently.

Embodiments include a lighting device that includes a first illumination source comprising a light-emitting diode (LED) of a first color that generates a first light output with a first melanopic ratio of 0.4 to 1.2, and a second illumination source comprising an LED of a second color that generates a second light output with a second melanopic ratio that is less than the first melanopic ratio. The lighting device also includes a light distribution unit for directing and distributing illumination generated by the first and second illumination sources, where at least one of the first illumination source and the second illumination source is affixed to the light distribution unit, and where the first and second illumination sources are oriented relative to one another such that their respective light outputs are directed in different directions.

The invention relates to a flashlight device comprising at least one unit for generating flashlight and at least one unit for focusing the generated flashlight. The invention further relates to methods for the use thereof and to a set comprising at least one flashlight device according to the invention and a light-curable material, and to a device.

A task light that includes a plurality of light emitting diodes (LED's) adapted for providing a variable intensity of emitted light; a light directing member for directing light from the LED's onto a work surface; a control logic, electrically connected to a light intensity selector, an ambient light sensor, and the plurality of LED's and wherein the control logic compares the intensity of ambient light in the area surrounding the work surface with the desired intensity of light to be provided at the work surface and adjusts the supply of electrical power to the LED's so that the total of the variable intensity of emitted light and the intensity of ambient light in the area surrounding the work surface is approximately equal to the desired intensity of light to be provided at the work surface.

Desk top items with LEDs also include USB-unit(s) or USB-module(s) and, optionally, additional outlet-units, to supply power to other electric or digital devices such as a smart phone or digital data device.

A reading lamp includes a lamp top set having a tubular housing and a support column having a first end and a second end opposite the first end. The support column may include a column wall defining a hollow interior of the support column. A swiveling joint assembly may be positioned between and join the tubular housing and the first end of the support column, such that the swiveling joint assembly enables one or more of polyaxial and rotational movement of the tubular housing relative to the support column or the swiveling joint assembly.

A luminaire includes a rail, first and second pairs of wings formed at opposed edges of the rail, a pair of contacts on each one of the top and bottom surfaces of the rail, at least one LED module attachable to the rail via at least one magnetic element, such that the LED module is electrically coupled to one pair of the pairs of contacts. The rail configured to receive and power the at least one LED module on either one of the top and bottom surfaces.