Many applications run on AC DC Adapter. The alternating current(AC) to directing current(DC) adapter that plugs into the wall to run your home printer or electric blanket may be warm to the touch.
Not only did NEMA form to monitor the quality and safety of electronics products, but they also wanted create simple processes to ensure compatibility between different devices.
The difference between UL recognized and UL listed or classified is that it does not apply a seal of approval to end products. ZhenHuan ac dc power supply series is approved UL ETL safety standards.
Any LED drivers marked with“TYPE HL”can be used directly for the end LED Luminaire installed in hazardous(classified) location areas without further evaluation.
PFC (Power factor correction) is a feature included in power supply boxes that reduces the amount of reactive power generated, it mean to improve power factor, and therefore power quality
CCC certification is a national compulsory product certification, CQC certification is a national voluntary product certification, also known as logo certification, CQC is the abbreviation of China
In different safety standards for power adapters, such as audio-visual, information, home appliances, medical, LED drive power and other safety standards.
A UL listed adapter is an AC adaptor that meets the safety standards outlined by the Underwriters Laboratories (UL). This is an organization that provides safety power supply certification.
