Shanghai Houlong Electronics Co.,Ltd

Brand: ROMAI

Brushless dc motor controller

Specification of  electric bike controller:

Pictures show:

Controller functions:

1. Water-proof

2. Over-voltage and short-circuit protection 

3. Under-voltage protection (protect life of battery)

4. Cruising function (manually operation and automatic operation)

5. Electronic soft-brake function (E-ABS optional)

6. Limited speed

7.1:1 power-assisted

8.Prevent bicycle from running when starting

9.Driving further for power-saving design

10.With silent design and without vibration

11.With hall protection

12.Univeral Self-learning function

13.Can connect to Hall sensor motor or sensorless motor.

Service:

1.inquiry will be replied in 24hrs. 

2.samples available. 

3.OEM&ODM accpted. 

4.Distributoership offered . 

5.Protection of your sales area, ideas of design and all your private information. 

Company Profile:

Our factory are specialized in the manufacturing and exporting electric bicycle, electric scooter, electric motorcycle, electric tricycle, electric spare parts and components, such as controller, motor, charger, frame, tilter and so on. We have been in this line almost 10 years, and with CE, COC & ISO 9001:2000 certification approved. 

Romai group put "quality and sincerity is the life of enterprise" as the creed. Regard electric vehicles production and selling as the core to seek for common development from different categories, which enhanced its competitive capability rapidly. At present, Romai group has formed 8 eight production base at home and abroad, the annual output of wholeset tricycles have surpassed 1.2 million and accessories output beyond 3 million sets. Romai brand has become the fastest growing, the most powerful and the most competitive well-known brand name in the electric vehicle business line.