- light ballast
- nounan electrical device for starting and regulating fluorescent and discharge lamps• Syn: ↑ballast• Hypernyms: ↑electrical device
Useful english dictionary. 2012.
light ballast
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Ballast Point — may refer to a number of geographic locations:;Australia * Ballast Point, New South Wales, an area in the suburb of Birchgrove in Sydney;USA * Ballast Point (Tampa), Florida, a neighborhood and district * Ballast Point Light, situated on Ballast… … Wikipedia
Ballast Point Light — Infobox Lighthouse caption = location = Point Loma, California coordinates = yearbuilt = 1890 yearlit = automated = yeardeactivated = foundation = construction = shape = Square height = convert|34|foot|0 currentlens = lens = Fifth order Fresnel… … Wikipedia
Ballast tank — A ballast tank is a compartment within a boat or ship, that holds water. A vessel may have a single ballast tank near its center or multiple ballast tanks typically on either side. A large vessel typically will have several ballast tanks… … Wikipedia
Ballast Factor — The ratio of light output of a fluorescent lamp operated on a ballast to the light output of a lamp operated on a standard or reference ballast … Energy terms
Light fixture — This article is about architectural light fixtures. For stage lighting, see Stage lighting instrument. Many various light fixtures A light fixture, light fitting, or luminaire is an electrical device used to create artificial light and/or… … Wikipedia
light displacement — Naut. the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery. Also called light… … Universalium
light displacement — noun : the displacement of a ship completely equipped but unladen * * * Naut. the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent … Useful english dictionary
light line — Naut. the line or level to which a ship or boat sinks when fully supplied with fuel and ballast but without cargo. Also called light load line. [1890 95] * * * … Universalium
light line — Naut. the line or level to which a ship or boat sinks when fully supplied with fuel and ballast but without cargo. Also called light load line. [1890 95] … Useful english dictionary
Ballast Efficacy Factor — The measure of the efficiency of fluorescent lamp ballasts. It is the relative light output divided by the power input … Energy terms
