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LED tubes. LED tube is a type of LED lamp used in fluorescent tube luminaires with G5 and G13 bases to replace traditional fluorescent tubes. [1] As compared to fluorescent tubes, the most important advantages of LED tubes are energy efficiency and long service life. LED tubes are sometimes also referred to as ‘LED fluorescent tubes’.
The Samsung i8520 (also known as Beam, or previously Halo) is a projector-enabled smartphone produced by Samsung. Its main feature is a built-in DLP WVGA projector that is able to project images at up to 50 inches (1,300 mm) in size at 15 lumens .
The lamp's end of life is typically indicated by an LED on the unit or an onscreen text warning, necessitating replacement of the lamp unit. Continued operation of the lamp past its rated lifespan may result in a further decrease in efficiency, the lightcast may become uneven, and the lamp may eventually become hot enough to the point that the ...
The Samsung Galaxy Beam i8530 (also known as the Galaxy Beam) is a projector-enabled smartphone produced by Samsung. Its main feature is a built-in DLP nHD projector at up to 50 inches (1,300 mm) in size at 15 lumens. In February 2012 the i8530 Galaxy Beam was presented at the Mobile World Congress in Barcelona. The last update was Android ...
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 ...
[26] [27] The first RPTV to use lasers instead of an UHP lamp or an LED was released by Mitsubishi as the LaserVue in 2008. Samsung exited the market by 2008, leaving Mitsubishi as the sole remaining manufacturer of RPTVs until it stopped in 2012 due to low profit margins and popularity. [28]
60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp circa 2021. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient ...
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens , but some newer types of projectors can project the image directly, by using lasers .