1.AC motor with low voltage and strong power. It have high efficiency, low noise, long life.
2.Adopt the machine limit device, simple adjusting and sensitive location controller.
3.Adopt currency power in regular state. Auto turn to battery supply while the power is broken.
4.Reserve power supply on the market used batteries for universal product (4.5 Ah / 12v); safe voltage: 24V.
5.DC operation, in the case with no electricity, AC and DC drive rolling door motor running, no load less than 40 times