Craving this simplicity, [Tom] invented the Cheap Universal LED Driver, or CULD, to do the job instead. The CULD is designed as a simple LED indicator that will light up anywhere from 5V to 50V.

The best way to deal with an annoying LED indicator light is to use dimming stickers. With LightDims, you get a sheet of custom-cut stickers in multiple sizes and shapes that you can easily peel ...

Isamu Akasaki, Hiroshi Amano and Shuji Nakamura invented the blue light-emitting diode in the early 1990s. For this, they received the 2014 Nobel prize for physics (11 October 2014, p 6). More ...

High-Intensity LED IndicatorsThe S18DLH and S22DLH high-intensity indicator lights are designed with highly visible LEDs to provide bright, clear indication in environments with high levels of ...

The datasheet confirms this current, which is less than 0.5 mA but sufficient to light a high-brightness LED to an unacceptable degree. The indication was not “sharp” enough for me.

Why Is the Monitor LED Blinking?. Computer monitors often include one or more LED indicator lights that show these devices' operating status. Monitor manufacturers can build a set of signals ...

If an LED isn’t dim enough for you after one sticker, you can stack a second one on top of it. LightDims Black Out Edition, which are designed to block 100 percent of an LED’s light.