Four New Jersey cities have begun testing new street lamps powered by light-emitting diodes. The new LED lamps are expected to reduce energy consumption significantly, have a longer life expectancy ...

The U.S Department of Energy (DOE) published a final rule in the Federal Register adopting a test procedure for integrated light-emitting diode (LED) lamps. This final rule amends the LED lamps test ...

SUMMARY: On April 9, 2012, the U.S. Department of Energy (DOE) published a notice of proposed rulemaking (NOPR) in which DOE proposed a test procedure for light-emitting diode (LED) lamps (hereafter ...

There are many types of lighting devices including the familiar incandescent lamp, LED (light emitting diode), HID (high intensity discharge), fluorescent, and induction lamps. All of them can convert ...

Researchers at the Norwegian University of Science and Technology succeeded in creating light-emitting diodes, or LEDs, on a graphene surface. According to a brief that explains their research, ...

We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop? Analog VOM’s attempt to measure resistance of ...

The Keithley System 25, a fully customizable test system for the light-current-voltage (LIV) characterization of laser diodes and assembled laser-diode modules (LDMs), lets users choose only the ...