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New Cree ® KR Series LED Downlights Continue to Obsolete Fluorescent Lighting Driving the Adoption of LED Lighting with Higher Lumen Outputs, New Aperture and Expanded Options DURHAM, N.C ...
T5 retrofit conversion can maintain existing lighting levels with the higher efficiency of the T5 lamp. However, with kits that operates the lamp on the existing magnetic ballast, the efficiency drops and the lamp life is considerably shortened, as T5 lamps aren't designed to be operated on mains frequency but only on high frequency.
[6] In 1999, the company name was changed from Cree Research to Cree, Inc. [7] In 2011, the company acquired Ruud Lighting for $525 million. [8] In August 2011, the company announced the XLamp XT-E Royal Blue LED for use in remote phosphor lighting. [9]
LED tubes are available with colour temperatures comparable to those of other lighting technologies. However, colder colour temperatures are more favourable in case of the LED technology. The warmer is the light achieved by the LED technology, the more are the benefits characteristic to the technology sacrificed (luminous power, for example).
LED display of a TI-30 scientific calculator (c. 1978), which uses plastic lenses to increase the visible digit size X-Ray of a 1970s 8-digit LED calculator display. Until 1968, visible and infrared LEDs were extremely costly, on the order of US$200 per unit, and so had little practical use. [23]
LED stage lights come in three main types. PAR cans, striplights [1] and 'moving head' types [citation needed]. In LED PAR cans, a round printed circuit board with LEDs mounted on is used in place of a PAR lamp. Moving head types can either be a bank of LEDs mounted on a yoke or more conventional moving head lights with the bulb replaced with ...
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