What are the brands of AED defibrillators? Which is the best one to choose?

Choose AED, see if the technology is ok, defibrillation energy is the key, definitely not the bigger the better, the leading technology is defibrillation energy is small, but the defibrillation efficiency is high, compared to the high energy shock on the person's damage is very big, especially if the machine defibrillation efficiency is low, many times if the electric shock, the damage is constantly increasing. And although the AED is the average person can use, but after all is a medical device, buy must buy to get AED registration certificate, which is certified by the Drug Administration non-medical personnel can use the defibrillator, the current domestic get CFDA registration certificate of the AED only long heart.