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 ...
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 ...
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