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2. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.

3. 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 ...

4. High-CRI LED lighting - Wikipedia

   en.wikipedia.org/wiki/High-CRI_LED_lighting

   An incandescent light bulb has a CRI of 100. [1] High-CRI LED lighting is a light-emitting diode (LED) lighting source that offers a high color rendering index (CRI). CRI is a quantitative measure of a light's ability to reproduce the colors of objects faithfully in comparison with an ideal or natural light source.

5. Blacklight - Wikipedia

   en.wikipedia.org/wiki/Blacklight

   A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ultraviolet light and very little visible light. [ 1 ] [ 2 ] [ 3 ] One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV ...

6. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   Sub-mA indicators may be made by driving ultra-bright LEDs at very low current. Efficiency tends to reduce at low currents, [3] but indicators running on 100 μA are still practical. In coin cell powered keyring-type LED lights, the resistance of the cell itself is usually the only current limiting device.

7. Ultraviolet germicidal irradiation - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_germicidal...

   Ultraviolet light-emitting diode (UV-C LED) lamps emit UV light at selectable wavelengths between 255 and 280 nm. [69] Pulsed-xenon lamps emit UV light across the entire UV spectrum with a peak emission near 230 nm. [70] This process is similar to, but stronger than, the effect of longer wavelengths producing sunburn in humans. Microorganisms ...