Artificial lighting disrupts wildlife
Artificial lighting results in behavior disruption, injury, and death to thousands of animals each year.
Should you use a 555 or a Schmitt trigger?
Which should be used, the 555 or the Schmitt trigger? It depends.
Is it time to upgrade to 4K UHDTV?
10 years later, and for 1/3 the price, this engineer still ended up with a notable TV upgrade.
Researchers break throughput record for LiFi using single GaN blue μ-LED
Data-transmission rate of 7.7Gbps positions Lifi as possible replacement for Wi-Fi with further R&D and industrial standardization to ensure interoperability…
GaN switcher ICs boost power output
Additions to the InnoSwitch3-MX series of isolated switchers enable PSU designs with continuous output power of up to 75 W…
Using LEDs for germicidal disinfection
The COVID-19 pandemic has increased awareness of UV disinfection, and the number of LED-based germicidal lighting products being developed.
Simplify the battery gauge with a 1-dot bar graph display
This display uses a cheap six-pin microcontroller and a tri-color LED to realize a simple alternative to the usual four-LED…
Testing solid-state lighting reliability
LED light sources continue to improve in reliability and overall performance, but still require additional research.
Teardown: Voice-activated, Wi-Fi-connected dimmer switch
Want to put "smart" lighting in your house? This smart dimmer combines a dual-microphone array and speaker, voice-command processing, and…
DOE lighting workshop explores lighting science and systems
This year’s DOE Lighting R&D Workshop covered topics like lighting for plants and human health, and integration of lighting and…