Visible light emitting diodes (LEDs) combine high efficiency and long lifetimes. Today, they’re used in a wide range of applications. Extensive R&D efforts by manufacturers have led to the creation of ...

Visible high brightness light emitting diodes (HBLEDs) have gained a reputation for high efficiency and long lifetimes, which has led to their use in a growing list of applications, including ...

If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...

Over the past 18 months, I have been home-testing LED light bulbs that are intended to replace the residential lighting that we all knew and loved — the 60-, 75- and 100-watt incandescent bulbs that ...