Conor started life in journalism at Digital Spy as a technology reporter, covering everything from Tim Cook's hypnotic dancing to the latest phone launches, before moving to Wareable Media Group in ...

Greater than 2-megapixel camera phones require a high intensity flash in medium to low light conditions to ensure good pictures. However, the battery presents the ...

Fig 1. Single 1-W LEDs can serve as high-power, high-brightness devices. Fig 2. Certain LED applications fall into a gray area where low-power and high-power components both can fit the bill. However, ...

If you are looking to replace halogen bulbs with LEDs, combining a rectifier bridge and a current-controlled synchronous step-up/step-down converter creates a high power factor driver circuit, writes ...

The light-emitting diode (LED) has been the environmentally friendly mainstream for lighting applications since its high efficiency and long lifetime were established. The incandescent lamp and ...

High-power industrial Light Emitting Diode (LED) fixtures use series-parallel strings of High Brightness (HB) LEDs to produce superior lighting fixtures compared to traditional, "ballast-based" ...

As LEDs continue to displace traditional lighting technologies, there are an increasing number of applications that require high lumen output, high-power LEDs. While the major manufacturers of LEDs ...

Loosely defined as LEDs with at least a 1-W capacity, high-power LEDs are a hot technology that’s very much in the market spotlight. Since their emergence, they have found themselves in a diverse ...

Multi-die packages are flavour of the month among the high-power LED manufacturers. Certainly for both manufacturers and designers chasing the title of “highest lumen output” device, this approach ...

A moisture- electrical – temperature (MET) test is proposed to evaluate the outdoor reliability of high power blue LEDs, with and without phosphor, and to understand the degradation physics of LEDs ...