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  2. Lighting control system - Wikipedia

    en.wikipedia.org/wiki/Lighting_control_system

    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 and at central computer locations via software programs or other interface devices.

  3. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    RGB-SMD-LED Composite image of an 11 × 44 LED matrix lapel name tag display using 1608/0603-type SMD LEDs. Top: A little over half of the 21 × 86 mm display. Center: Close-up of LEDs in ambient light. Bottom: LEDs in their own red light. Flashing

  4. Category:Safety switches - Wikipedia

    en.wikipedia.org/wiki/Category:Safety_switches

    Pertains to electrical switches intended to protect the equipment or end users from harm during fault conditions or other hazardous situations. Subcategories This category has the following 2 subcategories, out of 2 total.

  5. LED circuit - Wikipedia

    en.wikipedia.org/wiki/LED_circuit

    Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

  6. LED lamp - Wikipedia

    en.wikipedia.org/wiki/LED_lamp

    A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

  7. Safety harness - Wikipedia

    en.wikipedia.org/wiki/Safety_harness

    Other forms of safety harnesses include seat belts and child safety seats in cars, which are helping passengers be and feel more safe in a car, Over-the-shoulder restraints, which are mainly used on roller coaster at amusement parks, a seat with a full-body harness like ones used by fighter pilots and racing car drivers, as well as diving ...

  8. Aviation obstruction lighting - Wikipedia

    en.wikipedia.org/wiki/Aviation_obstruction_lighting

    Obstruction lighting is commonly installed on towers, buildings, and even fences located in areas where aircraft may be operating at low altitudes. In certain areas, some aviation regulators mandate the installation, operation, color, and/or status notification of obstruction lighting.

  9. Lightbulb socket - Wikipedia

    en.wikipedia.org/wiki/Lightbulb_socket

    A socket with a built-in switch is far more likely to fail in normal use as the switch parts wear out. Insulation failures are usually caused by impacts or by difficulty inserting or removing a lamp. Sockets used outdoors or in damp areas often suffer from corrosion which can cause the lamp to "stick" in the socket and attempts to change a lamp ...