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2. LED stage lighting - Wikipedia

   en.wikipedia.org/wiki/LED_stage_lighting

   A front view of a Stagebar LED striplight. LED stage lighting is a stage lighting technology that uses light-emitting diodes (LEDs) as a light source. LED instruments are an alternative to traditional stage lights which use halogen lamp or high-intensity discharge lamps. Like other LED instruments, they have high light output with lower power ...

3. Osram Sylvania - Wikipedia

   en.wikipedia.org/wiki/Osram_Sylvania

   Osram Sylvania Inc. is the North American operation of lighting manufacturer Osram.It was established in January 1993, with the acquisition of GTE's Sylvania lighting division by Osram GmbH. [1]

4. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   Higher efficiency LED versions of all of these lamps are now available. Tubular lamps with electrical contacts at each end are now being used in standalone lamps and household fixtures. These come in various lengths and power ratings (50–300 W). More powerful lamps are used as portable work lights, with bulbs rated 250 or 500 watts.