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2. 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.

3. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   An LED strip, tape, or ribbon light is a flexible circuit board populated by surface-mount light-emitting diodes (SMD LEDs) and other components that usually comes with an adhesive backing. Traditionally, strip lights had been used solely in accent lighting, backlighting, task lighting, and decorative lighting applications, such as cove lighting .

4. 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 ...

5. Liquid-crystal display - Wikipedia

   en.wikipedia.org/wiki/Liquid-crystal_display

   A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly [1] but instead use a backlight or reflector to produce images in color or monochrome. [2]

6. The 30 Best 'Cool' Gifts for Teens in 2022

   www.aol.com/lifestyle/best-gifts-for-teens...

   This eight-pack of markers is specifically curated for drawing Manga (a popular style of animation) art. ... A built-in LED activator charges the included glow-in-the-dark Gellets for a light-up ...

7. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   This made possible LED flashlights with lower power consumption and running time better than incandescent flashlights with similar light output. The first Luxeon LED flashlight was the Arc LS, designed in 2001. [citation needed] White LEDs in 5 mm diameter packages produce only a few lumens each; many units may be grouped together to provide ...

8. The best air purifiers of 2025 - AOL

   www.aol.com/lifestyle/best-air-purifiers...

   On the flipside, an Eco mode will shut off the fan if the air has been good (blue light) for 30 minutes, to help conserve energy, and starts up again if the quality of the air takes a turn for the ...

9. 20 genius gifts that make life easier, from lawn work to laundry

   www.aol.com/gifts-that-make-life-easier...

   BoxLegend Shirt Folding Board. $18 at Walmart ... with a color-changing LED light that automatically turns on from dusk to dawn for everyday use or can be set to only come on with motion ...