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  2. Channel letter - Wikipedia

    en.wikipedia.org/wiki/Channel_letter

    A standard channel letter is a three-dimensional graphic sign element. Its channel is fabricated from sheet metal, most often aluminum since it will not rust. A flat sheet of aluminum is typically cut on a table by a computer-controlled router, laser, or water jet, based on a vector-based art file (.cdr, .eps, .ai, .scv, .sci, or .fs).

  3. Thermal management of high-power LEDs - Wikipedia

    en.wikipedia.org/wiki/Thermal_management_of_high...

    The metal core usually consists of aluminum or copper alloy. Furthermore MCPCB can take advantage of incorporating a dielectric polymer layer with high thermal conductivity to reduce thermal resistance. Separation – Separating the LED drive circuitry from the LED board prevents the heat generated by the driver from raising the LED junction ...

  4. Aluminium - Wikipedia

    en.wikipedia.org/wiki/Aluminium

    Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals , about one-third that of steel .

  5. Aluminum building wiring - Wikipedia

    en.wikipedia.org/wiki/Aluminum_building_wiring

    Aluminum wire used before the mid-1970s had a somewhat higher rate of creep, but a more significant issue was that the same high price of copper driving the use of aluminum wire led to the use of brass-coated steel rather than solid brass screws for terminations at devices such as outlets and switches.

  6. Walmart's Presidents' Day deals are here — recliners under ...

    www.aol.com/lifestyle/walmarts-presidents-day...

    Apple Watch Series 10 GPS 42mm Jet Black Aluminum Case with Black Sport Band - S/M ... VIZIO 65" Class 4K UHD LED HDR Smart TV. ... It allows you to access all your streaming channels directly on ...

  7. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    The discovery of radiative recombination in aluminum gallium nitride (AlGaN) alloys by U.S. Army Research Laboratory (ARL) led to the conceptualization of UV light-emitting diodes (LEDs) to be incorporated in light-induced fluorescence sensors used for biological agent detection.

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