Running LEDs from an AC supply
WEBMay 2, 2006 · To run an LED-based fixture from a mains supply (e.g. 120 V AC) requires electronics between the supply and the devices themselves to provide a DC voltage (e.g. 12 V DC) capable of driving several LEDs. A new approach is to develop AC-LEDs, which can operate directly from an AC power supply. This provides several advantages, as …
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WEBSep 16, 2024 · LEDs Magazine. Volume 21, Issue 2. LEDs Magazine covers technology advances, markets, and applications of LED lighting and related component systems for commercial development and deployment by researchers, engineers, product developers, and manufacturing professionals.
What is an LED? - LEDs Magazine
WEBSep 1, 2004 · In the simplest terms, a light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. Light is produced when the particles that carry the current (known as electrons and holes) combine together within the semiconductor material. Since light is generated within the solid semiconductor ...
Seoul Semiconductor moves to emphasize CSP LEDs across SSL …
WEBJun 18, 2024 · Seoul Semiconductor moves to emphasize CSP LEDs across SSL applications. The company’s WICOP technology is finding broad uses in automotive applications, and Seoul said it will ultimately have WICOP-based, SunLike-spectra LEDs. Seoul Semiconductor is placing WICOP LEDs into traditional high-power packages for demanding applications such as ...
Choosing between LED and HPS street lights - LEDs Magazine
WEBDec 9, 2010 · The results of the life cycle cost analyses are summarized in the chart below. Estimated life. Average life cycle cost per mile of recommended LED streetlights. Average life cycle cost per mile (excluding poles) of the "higher power" LED street lights. 25,000 hours (6 years) 2.6X incumbent 150W HPS. 2.3X …
Fact or Fiction – LEDs don’t produce heat | LEDs Magazine
WEBMay 10, 2005 · In one sense this is true: LEDs are cool to the touch because they generally don't produce heat in the form of infrared (IR) radiation (unless of course they are IR LEDs). IR radiation heats the enclosures and surroundings of incandescent bulbs and other sources, making them hot to the touch. The absence of IR radiation allows LED fixtures to ...
Lumileds CEO discusses SSL revolution and disparate LED ... - LEDs …
WEBJun 1, 2021 · Lumileds CEO discusses SSL revolution and disparate LED market dynamics (MAGAZINE) June 1, 2021. MAURY WRIGHT interviewed relatively new Lumileds CEO Matt Roney and explored the new vision at one of the oldest LED companies and how the SSL transitioned has played out across application segments. Maury Wright.
PoE technology for LED lighting delivers benefits beyond efficiency
WEBSep 3, 2015 · Assuming a dimmable LED fixture, the AC system efficiency (82.9%) is only slightly better than the 10W PoE LED fixture with the maximum 100m cable length (82.3% efficiency). If we consider the 25m Cat5 cable, the AC efficiency is actually decreased by 1% (82.9% vs. 83.9% for the PoE LED lamp).
Lighting systems leverage DC distribution for maximum efficiency ...
WEBApr 1, 2014 · Let’s discuss how DC-grid technology can deliver significant energy savings, especially when combined with inherently efficient LED sources. Lighting systems leverage DC distribution for maximum efficiency. FIG. 1. LED lighting powered directly from a DC grid run through a drop-ceiling frame helps boost efficiency at the room or building level.
About LEDs Magazine | LEDs Magazine
WEBApr 23, 2024 · About Us. For years, LEDs Magazine and its events have been known as “component centric.”. While that identity has served us well, it doesn’t fully illustrate the breadth of content, thought leadership, and subject-matter expertise that LEDs delivers from the lighting manufacturing, design, and supply chain. LEDs Magazine continuously ...
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