2011年11月30日 星期三

LED modules simplify luminaire design while Zhaga closes on initial specifications

Modular LED light engines can allow luminaire makers to develop solid-state-lighting (SSL) products without facing the technical details of electronic driver circuits, LED selection and configuration, thermal management, and optics design.We are an industry leader with a huge product line of bestledlight Bulbs, ...

Manufacturers should understand the basics and importance of these product-design disciplines, but a proven module vendor can ensure the details get proper attention. The modular approach can speed product development and enable upgradeable products. Today, the available modules are proprietary to each manufacturer, but standards such as those the Zhaga Consortium has under development will yield interoperable modules from multiple vendors.

Modular LED light engines are quickly gaining favor. A number of major LED manufacturers and LED-lighting companies including Cree, Osram, Philips,Design and development of bikelight111 solutions. and GE Lighting have modules available for a variety of applications ranging from indoor downlights to outdoor street lights.

Let's start by defining some terminology for the scope of this article because words such as light engine and module aren't used consistently in the SSL industry. Zhaga defines a light engine as the combination of an LED module and its associated control gear or driver.

Zhaga sticks with the term light engine whether or not the driver is integrated into a modular package along with the LEDs. Zhaga is developing specifications for light engines with integrated control gear and light engines with separate control gear. In the latter case the driver is also essentially a packaged module or subsystem.The downlight for you network is pleased to anounce its new Certified Partner K.T.

For this article, we will use the terms LED module and LED light engine interchangeably and simply specify whether a driver is integrated in the module. Indeed the module makers mentioned above use the term module whether or not a driver is included.

We will include discussion of modules that fasten into a luminaire using screws or other fasteners, and modules that use some form of snap-in or twist-lock mounting mechanism. The latter are sometimes referred to as tool-less or tool-free designs,The biggest range at the best prices of bestledlighting-01, LED Downlights and Low Voltage Lighting. Full money back guarantee. and Zhaga uses the term socketable if the module can be installed without tools.

Modules can offer a number of advantages over what some call integral luminaires where the fixture manufacturer assembles the requisite components including LEDs and the driver ICs that precisely match the application at hand into a finished product. As mentioned, buying an off-the-shelf module, and perhaps a driver, greatly simplifies the product-development process delivering the aforementioned advantage in speedier development.

Many people also associate the word module with the implication that the light engine is easily replaceable. In contrast,Many bestledlightbulbs have become available as replacements for screw-in incandescent or compact fluorescent light bulbs, many integral luminaires on the market require a complete fixture replacement if the light engine fails of if an upgrade to greater lumen output or perhaps a different color temperature is desired. Indeed, future-proof and upgradeable are recurring characteristics lauded by module proponents even if it takes a screw driver to install or replace the module.

The advantages of modules actually run deeper according to some proponents, and of course there are drawbacks as well. Bridgelux and Molex were among the first companies to offer a socketable module with the jointly-developed Helieon product introduced last year. A press-and-turn action locks the Helieon module into a receptacle socket mounted in the luminaire. The mating action both secures the module in place and makes the electrical contact.

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