Voltage regulator and voltage converter 12V AC-DC (alternating current to direct current).
Connection sequence (from left to right):
1st pin: 12V AC from the motor (is limited to 12V)
2nd pin: ground (frame)
3rd pin: 12V AC from the motor (must be connected to the 1st pin). 
4. pin 12V DC, maximum power output approx. 20 watts
Attention, all 4 poles must be connected to ensure proper functioning.
This rectifier can be used to charge a battery. 
This regulator should only be installed for ignitions with 12 volts and at least 50 watts of power (HPI, MVT etc.).
| Tension | 12 V | 
| Performance | 20 W | 
| Type of current | Alternating current (AC), Direct current (DC) | 
| Ø mounting hole | 6.3 mm | 
| Mounting type | Screws | 
| Universal | |
| Pony / Cilo (Beta 521 & 512) | Beta 521 (engine) | 
| Tomos | 
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