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A Carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2 ), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O). [1] Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable acetylene gas lamps, worn on ...
A 50-hour-life projection bulb, for instance, is designed to operate only 50 °C (122 °F) below that melting point. Such a lamp may achieve up to 22 lumens per watt, compared with 17.5 for a 750-hour general service lamp. [72] Lamps of the same power rating but designed for different voltages have different luminous efficacy.
[Note 2] If a lamp has a "G" code, [Note 3] this will mean the lamp is a bipin shape and the number following the G will indicate the distance in millimeters between the pins, usually either 4, 6.35 or 10; if the G is followed by a letter "Y", then the lamp's pins are thicker than normal— thus, a G6.35 has pins that are 1 mm in diameter but a ...
This is a nearly 15% hit rate from only two dairy farms out of more than 170 with bird flu outbreaks in 13 states this year.
Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power, measured in lumens per watt in the International System of Units (SI). Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy ...
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 ...
A provincial government is autonomous of other provinces within the republic. Each province is governed by two main elected branches of the government: executive and legislative. Judicial affairs are separated from provincial governance and are administered by the Supreme Court of the Philippines. Each province has at least one branch of a ...
Ford's history in the Philippines can be traced back to 1929. Ford Philippines, Inc. (FPI) was established as a subsidiary of the Ford Motor Company in 1967 and began production operations on May 3, 1968. Ford left the market in 1984 due to the local economic recession. The brand came back in 1997 as Ford Group Philippines, Inc. (FGPI).