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J. H. Holmes & Co. Known for. Developing technology behind the modern light switch. John Henry Holmes (1857 – 1935) was an English electrical engineer, inventor, Quaker and pioneer of electric lighting who invented the quick break light switch, the technology behind which remains the basis for modern wall mounted light switches. [1]
The term lighting control system refers to an intelligent networked system of devices related to lighting control. These devices may include relays, occupancy sensors, photocells, light control switches or touchscreens, and signals from other building systems (such as fire alarm or HVAC). Adjustment of the system occurs both at device locations ...
Some vehicles have "approach lighting" or "puddle lights" (lights that illuminate the ground outside the doors) in the exterior mirrors or lower edges of the doors, as well as interior lighting activated via key fob. Many cars have lights in the trunk, the engine compartment, the glove box, and other storage compartments. Modern pickup trucks ...
Vintage push-button light switches. The push-button light switch has two buttons: one that closes the contacts and one that opens the contacts. Pushing the raised button opens or closes the contacts and pops out the previously depressed button so the process can be reversed. In the U.S., the buttons were commonly black; the "on" button ...
Several intelligent lights in use at a concert. Note the white beams they produce. Intelligent lighting refers to lighting that has automated or mechanical abilities beyond those of conventional, stationary illumination. Although the most advanced intelligent lights can produce extraordinarily complex effects, the intelligence lies with the ...
The switch to Lxxx codenames occurred after the sale to Ford with L30 being renamed L322 at the top of a model line-up of Range Rover Sport (L320) Land Rover Discovery (Discovery 3 L319), Land Rover Defender (L316) and Freelander (L314). The third-generation Range Rover was designed to accommodate BMW's M62 V8 engines for future models.