Cree, Inc. has reexamined the formula for calculating the costs of LED modules and LED lighting. The company noted that while previously, an LED was the most expensive piece of the lighting puzzle, the LED currently makes up only about 30 percent of the total cost. Cree pointed out recently that other components such as the heat sink, the driver, and optics are also high in proportion of total cost, and modules that reduce these costs can save money.
Based upon these ideas of cost savings without compromising performance, the company has introduced the XLamp® MH-B LED, a new generation of high power LEDs. Cree claims that the XLamp MH-B delivers better performance and a more effective way to achieve low-cost systems than mid-power (MP) LEDs. According to Cree this reduction comes from the reduction in the heat sink size and cost as well as a reduction in the required number of LEDs and the size and number of optics.
The MH-B LED employs Cree’s high reliability ceramic package technology, the enables it to operate at higher temperatures than mid-power LEDs with no reduction in rated lifetime. Cree says that the ability to operate at higher temperatures enables a 60 percent reduction in heat sink size and cost. Also, because each LED is brighter and smaller, an LED module can use up to 26 times fewer LED chips than MP LEDs to achieve the same level of performance. Cree reportedly optimized the XLamp MH-B to simplify LED system designs for applications currently using multiple mid-power LEDs.
“Cree has once again invented a lighting-optimized solution that can lower my costs and decrease manufacturing times,” said Frank Chen, technical director, Zhejiang Shenghui Lighting Co., Ltd. and Sengled Optoelectronics Co., Ltd. “While chip-on-board LEDs are an attractive alternative to MP LEDs in terms of reliability and cost, they aren’t compatible with my automated manufacturing processes. The new XLamp® MH-B LED finally gives me a more reliable alternative to mid-power LEDs – I nolonger have to compromise my brand and reputation to achieve a lower system cost.”
The XLamp MH-B has a small 5-mm by 5-mm light emitting surface and features Cree’s EasyWhite® technology. Cree points out that the XLamp MH-B offers simpler optics, tighter beam angles, easier color consistency, and a more traditional appearance. As a single LED, the XLamp MH-B LED provides up to 830 lumens at 175 mA and 37 Volts This translates to efficacy of about 118 lm/W. It can also be used in arrays for higher lumen applications such as downlights, high bays, and outdoor area lights.
“The new XLamp® MH-B LED combines the reliability and manufacturability of Cree’s high power LEDs with the simplicity and performance of our CXA LED arrays,” said Paul Thieken, director of marketing, LED components. “MH-B introduces a new technology platform that gives customers the best of both technologies, while avoiding the limitations of mid-power LEDs.”
The XLamp MH-B LED comes in correlated color temperatures of 2700K – 6500K with high color rendering index options. Product samples are available now and production quantities are available with standard lead times.