Issue link: https://te.mouser.com/i/1475713
mouser.com/te 21 same light. The stage director can illuminate certain cast members or stage directions by using an assortment of smaller lights while leaving the others in darkness. Since light pollution is particularly problematic in large urban centers and areas, LED lighting might make stargazing from the streets of major metropolitan areas possible again. Efficient lighting often requires tight consistency from LED to LED so that LEDs used within a fixture and in multiple fixtures all have the same color and output levels. For example, consider the LUXEON HL2X high-power LED. This illumination grade multi-die LED is designed for outdoor and industrial applications targeting either high efficiency or low cost. To deliver color consistency from LED to LED, every Lumileds LUXEON HL2X LED fall within a single 3- or 5-step MacAdam ellipse centered in ANSI (American National Standards Institute) to ensure color consistency. This results in high efficacy and high flux density with tightly correlated color temperature control from a uniform source. This level of consistency and uniformity makes it possible to create sizeable outdoor lighting systems that can meet challenging illumination requirements. For example, drivers won't be exposed to bright/hot spots that distract them or low-lighting levels that make it hard to see the road, pedestrians, or other vehicles. LUXEON HL2X LEDs are designed and tested with consistency at the top of mind. Lumileds was the first supplier to adopt hot-testing, in combination with a tight elliptical color bin structure, during the production of high-power LEDs. This requires state-of-the- art testers and sophisticated algorithms that carefully match the LED's epi and phosphor materials to ensure tight color consistency within a product family. In practical terms, the light output, forward voltage, and color point of Lumileds LEDs are guaranteed within a tight set of bounds at a junction temperature of 85°C, allowing LED system designers to better predict their application's performance. This ensures developers need not resort to additional testing, or 'binning,' to guarantee LEDs meet tight consistency requirement, reduces engineering efforts, improves time-to-market, and results in more efficient and pleasing lighting solutions. Lighting consistency can be a significant contributing factor to a green installation. Only the right amount of light, and therefore power, is needed to deliver the safety and reliability outdoor systems demand.