The whole thing was mounted in a full-brim hard hat with 1W “high-beam” and 3 “low-beam” LEDs; an 12 red warning LEDs around the rim driven by two more 74HC14 circuits (one as a pierce ...

Date Announced: 14 Sep 2011 LED lighting drive power in the market is usually divided into two level architecture and one level architecture, one level architecture means to convert 220V electricity ...

Date Announced: 03 Sep 2011 At present，in the main LED lighting market, there are two types of led drivers, such as isolation and non isolation. Non isolated design only refers to insulation products, ...