Radio frequency interference (RFI) to frequencies in the AM and shortwave broadcast bands has been on the increase in the last two decades, due primarily to switch-mode power supplies being used for ...

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 LED, or light-emitting diode, itself is very unlikely to fail, and if it does, it goes out slowly over the years. Instead, it's the other electrical bits in LED bulbs that fail and cut off the ...

UL Named Authorized Test Laboratory for Zhaga Books 4, 7 and 8 in addition to current Books 2 and 3 Underwriters Laboratories (UL) recently announced that it has been named an authorized testing ...