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Ac LEDs get brighter
Updated Acriche ac-powered LEDs from Seoul Semiconductor Inc. in South Korea, emit 200 lumens at 3.3 W, 50% more than the company's previous version. High-yield fabrication and economies of scale slash costs by 40%, making this latest incarnation more competitive with conventional lighting. Acriche comes as a single emitter without a heat-sink PCB for greater design flexibility. The upgraded package handles up to 4 W, a first for semiconductor-based light sources, says the company. Acriche runs on 100 to 120 and 220 to 230 Vac, so it can be used in the U.S., South Korea, EU, China, India, the U.K., and Japan.
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Hot tips on thermocouples
What may be the most common method of measuring industrial temperatures is mostly misunderstood by engineers and technicians. Thermocouples aren't exactly the latest fad in automation and control. They've been in use for a long time, work well, and seem pretty simple in operation. More than 60% of all temperature measurements in the U.S. use thermocouples. There are good reasons to use thermocouples over other temperature sensors. Your facility may already use them. The application may need a sensor that withstands a lot of physical stress or one that is physically small. The expected high, low, or span of temperature may exceed the limitations of other sensor types. Finally, it might be difficult to justify a higher price for more sophisticated devices.
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