Up to 160 lumens output: breakthrough in new white LED performance

Editor's note: LED developer Cree claims that a new white LED developed by the company can output 160 lumens of light with a 700mA forward DC current, which can achieve 61 lumens/W (color temperature at 5000K and 10,000K). Between), its brightness is about 33% higher than the nearest competitor. The company's Xlamp 7090 XR-E series also delivers 85 lumens at 350mA. According to data provided by Cree, the total output of its LED products at 700 mA is even higher than that of other similar devices on the market at twice the current drive. Thanks to a relatively small light source, the light uniformity of the newly developed device is 300% higher than the company's earlier products. According to Cree, the device is as efficient as fluorescent light sources, making it an economical choice for a wide range of general lighting and backlighting applications, and is expected to be used in flashlights, architectural lighting, traffic signals, home and office lighting. , headlights, garage and warehouse lighting, camera flash and projection display. Building a light-emitting device based on Cree's EZBright 1000 LED chip, the Xlamp 7090 XR-E is fabricated on a piece of silicon carbide substrate (SiC) with an oriented epitaxial indium-gallium-nitride layer (InGaN). (See Figure 1). The chip uses reflow soldering and surface mount technology, and its chip footprint is relatively small, 7 × 9mm. Its forward operating voltage is 4V, which is 15% lower than the closest competitor (Figure 2).
Figure 2: Cree's Xlamp 7070 XR-E white LEDs have a forward voltage ratio that is 15% lower than the forward voltage of competitive products, resulting in lower power consumption and longer life. The maximum reverse voltage is 5V. The thermal resistance (semiconductor junction to solder joint) is 8C/W. The maximum temperature of the semiconductor junction is 145 °C. Mark McClear, head of business at Cree, explains: “This is probably the lowest thermal conductivity that can be achieved today, which is achieved through the use of ceramic substrates.” The XLamp 7090 XR-E has a rated life of more than 50,000 hours or 6 years (70%) Light output calculation). In addition, the company offers color blue, blue, cyan, green, light yellow, orange red and orange XLamp 7090 color LEDs. White LEDs are also available in cold, soft and warm light. Technical breakthroughs Due to the patented optical design technology, the chip uses the best Lambertian illumination mode with low radiation loss and high luminous efficiency. Compared to the plastic circular lenses used in other high-brightness LEDs, the Xlamp 7090 XR-E uses a high-quality, floating glass circular lens to achieve more light. Moreover, the chip is fabricated and processed using a new phosphor deposition technology to make its thermal conduction path electrically neutral and insulated, so that many other white LED products on the market can be replaced by inexpensive FR4 photoelectric guide materials. A very expensive metal core photoconductive plate used. Cree did not give clear information about the pricing of the new product. In this regard, McClear explained: "The new product will be priced according to lumens / US dollars, which will be more than 20% more than Cree's previous products and other similar products on the market." In addition, McCree also revealed that the new product shipments About 250,000 sets have been reached. Paul Thieken, Head of Marketing at Cree, told us: "As for cost, you need to consider the cost of maintenance and replacement over the life of the product. In this respect, the Model 7090 has a clear advantage over competitors' products." Permlight Products A developer and manufacturer of thermal-controlled LED lighting systems for residential and other applications, the company has adopted Cree's products to develop new products. Cree expects to replace the traditional solid-state high-brightness light source with the company's new products to achieve good energy savings, and Manuel Lynch, president and CEO of Permlight Products, agrees. This can be achieved by maximizing LED efficiency. “This is a very important business scale,” Lynch said. “The high-brightness light sources we use for counter, stair and channel lighting are now using Cree's Xlamp products.” In addition, Permlight is also used for digital signals and other applications. Provides lighting equipment using Cree's high-brightness LEDs.


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PC Cable

PC Cable:MINI DIN,D-SUB,SCSI.The display connecting line includes the data cable connecting the host computer and the display screen, and the power cable connecting the power supply.

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