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A decorative outdoor lamp at Leeds Town Hall A garden solar lamp is an example of landscape lighting. Outdoor lighting and landscape lighting – used to illuminate walkways, parking lots, roadways, building exteriors and architectural details, gardens, and parks. Outdoor light fixtures can also include forms similar to indoor lighting, such as ...
Circular and U-shaped lamps were devised to reduce the length of fluorescent light fixtures. The first fluorescent light bulb and fixture were displayed to the general public at the 1939 New York World's Fair. The spiral CFL was invented in 1976 by Edward E. Hammer, an engineer with General Electric, [7] in response to the 1973 oil crisis. [8]
The design was initiated by the U.S. EPA and the Lighting Research Center in 2004, in order to facilitate the deployment of compact fluorescent light bulbs with replaceable ballasts. [ 1 ] The GU24 fitting is compliant with a 2008 ruling by the California Energy Commission under Title 24 ( California Building Standards Code ) to require high ...
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, to produce ultraviolet and make a phosphor coating in the lamp glow.
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Cross section of a typical fluorescent lamp with and without a reflector. Some lamps have an internal opaque reflector. Coverage of the reflector ranges from 120° to 310° of the lamp's circumference. Reflector lamps are used when light is only desired to be emitted in a single direction, or when an application requires the maximum amount of ...
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