Without enough power, voltage, current, what will happen?
					2017-10-26 10:58
				
                 Details of the problem:
				
				
				 
								When installing, what will happen without enough power, voltage, current?
					Expert answer:
								                
			Hello, thanks for using our company’s products. Without enough power, voltage, current, generally will lead to abnormal swiping card to open the door or the door unlocked.