VOTOL SV120 (LIN)
VOTOL SV120 sine wave controller with ONE-LIN display protocol. 72V nominal, 80A continuous / 150A boost battery current, 350A peak phase current. IP67 waterproof, 930g, 150% flux weakening, ≥93% max efficiency, peak power 10800W. Supports FOC sinewave drive. Hall sensored. Programmable via PC with USB adapter cable. Designed for 2-3kW PMSM/BLDC motors — recommended for QS Motor pairings. Ships with function harness and USB programming cable. Newer SV-series design (2025) — more compact than EM-series. ONE-LIN version typically $20-30 cheaper than CAN variant.
In brief: 48–72V controller. 80A continuous. 150A peak. Sinewave, dual mode, regen, field weakening support. From $146 across 2 sellers.
Specs verified Aug 1, 2026
Where to Find
Prices tracked across 5 sellersAliExpress - SIAECOSYS Electric Drive Store
$145.94 + $24.94 shipping
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
$187.89 + $24.94 shipping
AliExpress - SIA Tech Store
Out of stockAliExpress - SiAECOSYS Electric Powertrain Store Store
Out of stockAliExpress - SIAECOSYS Official Store
Out of stock* Shipping estimates are for the contiguous US and may vary by location.
* WattWorks may earn a commission from some sellers linked here. Sellers are ranked by total price and stock status only. Learn more
Price History
Price History
Price changes tracked by the crawler
Current best price $137.75. Over the past 90 days: low $127.17, high $187.89, average $147.58 — down 7% vs average.
- AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
- AliExpress - SIAECOSYS Electric Drive Store
- AliExpress - SIAECOSYS Official Store
- AliExpress - SIA Tech Store
- AliExpress - SiAECOSYS Electric Powertrain Store Store
All Records
94 price records in this period
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SIA Tech Store(26 records) | |||||||||
| May 29, 202607:01 PM | $137.75 | $21.25 | $159.00 | $0.00 | SSUS14−$14.00 | — | — | No | active |
| May 28, 202604:49 PM | $137.75 | $21.25 | $159.00 | $0.00 | — | — | — | Yes | active |
| May 28, 202604:49 PM | $137.75 | $21.25 | $159.00 | $0.08 | — | — | — | Yes | active |
| May 27, 202606:11 PM | $137.67 | $21.24 | $158.91 | $0.00 | — | — | — | Yes | active |
| May 27, 202606:10 PM | $137.67 | $21.24 | $158.91 | $10.50 | — | — | — | Yes | active |
| May 25, 202610:56 PM | $127.17 | $21.24 | $148.41 | $10.23 | — | — | — | Yes | active |
| May 25, 202610:55 PM | $137.40 | $21.18 | $158.58 | $0.00 | — | — | — | No | active |
| May 23, 202606:02 PM | $137.40 | $21.18 | $158.58 | $0.00 | — | — | — | Yes | active |
| May 23, 202606:02 PM | $137.40 | $21.18 | $158.58 | $7.63 | — | — | — | Yes | active |
| May 22, 202603:59 PM | $129.77 | $21.18 | $150.95 | $0.00 | — | — | — | Yes | active |
| May 22, 202603:59 PM | $129.77 | $21.18 | $150.95 | $0.07 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202604:03 PM | $129.84 | $21.20 | $151.04 | $0.00 | — | — | — | Yes | active |
| May 21, 202604:03 PM | $129.84 | $21.20 | $151.04 | $0.00 | USSS12−$12.00 | — | — | Yes | active |
| May 19, 202604:06 PM | $129.84 | $21.20 | $151.04 | $0.00 | — | — | — | Yes | active |
| May 19, 202604:05 PM | $129.84 | $21.20 | $151.04 | $0.57 | USSS05−$5.00 | — | — | Yes | active |
| May 18, 202604:02 PM | $129.27 | $21.14 | $150.41 | $0.00 | — | — | — | Yes | active |
| May 18, 202604:01 PM | $129.27 | $21.14 | $150.41 | $8.20 | USSS12−$12.00 | — | — | Yes | active |
| May 17, 202602:06 PM | $137.47 | $21.20 | $158.67 | $0.00 | — | — | — | Yes | active |
| May 17, 202602:06 PM | $137.47 | $21.20 | $158.67 | $0.00 | — | — | — | Yes | active |
| May 16, 202602:12 PM | $137.47 | $21.20 | $158.67 | $0.00 | — | — | — | Yes | active |
| May 16, 202602:12 PM | $137.47 | $21.20 | $158.67 | $0.00 | — | — | — | Yes | active |
| May 15, 202601:20 PM | $137.47 | $21.20 | $158.67 | $0.00 | — | — | — | Yes | active |
| May 15, 202601:20 PM | $137.47 | $21.20 | $158.67 | $0.07 | SRUS02−$2.00 | — | — | Yes | active |
| May 14, 202603:45 PM | $137.54 | $21.21 | $158.75 | $0.00 | SRUS04−$4.00 | — | — | No | active |
| May 12, 202611:48 AM | $137.54 | $21.21 | $158.75 | $0.00 | — | — | — | Yes | active |
| May 12, 202611:48 AM | $137.54 | $21.21 | $158.75 | Initial | SRUS07−$7.00 | — | — | Yes | active |
AliExpress - SIAECOSYS Electric Drive Store(21 records) | |||||||||
| May 29, 202601:43 PM | $145.94 | $24.94 | $170.88 | $0.00 | — | — | — | Yes | active |
| May 29, 202601:42 PM | $145.94 | $24.94 | $170.88 | $0.14 | — | — | — | Yes | active |
| May 28, 202612:11 PM | $145.80 | $24.90 | $170.70 | $0.00 | — | — | — | Yes | active |
| May 28, 202612:11 PM | $145.80 | $24.90 | $170.70 | $0.55 | — | — | — | Yes | active |
| May 27, 202601:30 PM | $145.25 | $24.89 | $170.14 | $0.00 | — | — | — | Yes | active |
| May 27, 202601:29 PM | $145.25 | $24.89 | $170.14 | $0.00 | — | — | — | Yes | active |
| May 25, 202605:21 PM | $145.25 | $24.89 | $170.14 | $0.00 | — | — | — | Yes | active |
| May 25, 202605:20 PM | $145.25 | $24.89 | $170.14 | $15.84 | — | — | — | Yes | active |
| May 23, 202601:27 PM | $161.09 | $24.82 | $185.91 | $0.00 | — | — | — | Yes | active |
| May 23, 202601:27 PM | $161.09 | $24.82 | $185.91 | $24.16 | — | — | — | Yes | active |
| May 22, 202612:12 PM | $136.93 | $24.82 | $161.75 | $0.00 | — | — | — | Yes | active |
| May 22, 202612:12 PM | $136.93 | $24.82 | $161.75 | $0.06 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202612:15 PM | $136.99 | $24.84 | $161.83 | $0.00 | — | — | — | Yes | active |
| May 21, 202612:15 PM | $136.99 | $24.84 | $161.83 | $0.00 | USSS12−$12.00 | — | — | Yes | active |
| May 19, 202612:17 PM | $136.99 | $24.84 | $161.83 | $0.00 | — | — | — | Yes | active |
| May 19, 202612:17 PM | $136.99 | $24.84 | $161.83 | $0.26 | USSS05−$5.00 | — | — | Yes | active |
| May 18, 202612:16 PM | $136.73 | $24.77 | $161.50 | $0.00 | — | — | — | Yes | active |
| May 18, 202612:15 PM | $136.73 | $24.77 | $161.50 | $8.32 | USSS12−$12.00 | — | — | Yes | active |
| May 17, 202610:05 AM | $145.05 | $24.84 | $169.89 | $0.14 | — | — | — | Yes | active |
| May 14, 202609:38 AM | $145.19 | $24.87 | $170.06 | $2.21 | — | — | — | Yes | active |
| May 10, 202610:28 AM | $142.98 | $24.82 | $167.80 | Initial | — | — | — | Yes | active |
AliExpress - SiAECOSYS Electric Powertrain Store Store(13 records) | |||||||||
| May 29, 202607:21 PM | $146.59 | $24.90 | $171.49 | $0.00 | SSUS14−$14.00 | — | — | No | active |
| May 28, 202605:01 PM | $146.59 | $24.90 | $171.49 | $0.55 | — | — | — | No | active |
| May 27, 202606:22 PM | $146.04 | $24.89 | $170.93 | $8.37 | — | — | — | No | active |
| May 23, 202606:13 PM | $137.67 | $24.82 | $162.49 | $0.00 | — | — | — | No | active |
| May 22, 202604:11 PM | $137.67 | $24.82 | $162.49 | $0.07 | USSS05−$5.00 | — | — | No | active |
| May 21, 202604:14 PM | $137.74 | $24.84 | $162.58 | $0.00 | USSS12−$12.00 | — | — | No | active |
| May 19, 202604:18 PM | $137.74 | $24.84 | $162.58 | $0.26 | USSS05−$5.00 | — | — | No | active |
| May 18, 202604:14 PM | $137.48 | $24.77 | $162.25 | $8.37 | USSS12−$12.00 | — | — | No | active |
| May 17, 202602:16 PM | $145.85 | $24.84 | $170.69 | $0.00 | — | — | — | No | active |
| May 16, 202602:17 PM | $145.85 | $24.84 | $170.69 | $0.00 | — | — | — | No | active |
| May 15, 202601:25 PM | $145.85 | $24.84 | $170.69 | $0.06 | SRUS02−$2.00 | — | — | No | active |
| May 14, 202603:55 PM | $145.91 | $24.85 | $170.76 | $0.00 | SRUS04−$4.00 | — | — | No | active |
| May 12, 202611:53 AM | $145.91 | $24.85 | $170.76 | Initial | SRUS16−$16.00 | — | — | No | active |
AliExpress - SIAECOSYS Official Store(15 records) | |||||||||
| May 29, 202603:15 PM | $151.64 | $21.28 | $172.92 | $0.13 | — | — | — | No | active |
| May 28, 202601:43 PM | $151.51 | $21.25 | $172.76 | $0.08 | — | — | — | No | active |
| May 27, 202603:05 PM | $151.43 | $21.24 | $172.67 | $0.00 | — | — | — | No | active |
| May 25, 202607:31 PM | $151.43 | $21.24 | $172.67 | $3.23 | — | — | — | No | active |
| May 23, 202603:11 PM | $148.20 | $21.18 | $169.38 | $8.23 | — | — | — | No | active |
| May 22, 202601:36 PM | $139.97 | $21.18 | $161.15 | $0.06 | USSS05−$5.00 | — | — | No | active |
| May 21, 202601:39 PM | $140.03 | $21.20 | $161.23 | $0.00 | USSS12−$12.00 | — | — | No | active |
| May 19, 202601:41 PM | $140.03 | $21.20 | $161.23 | $0.67 | USSS05−$5.00 | — | — | No | active |
| May 18, 202601:39 PM | $139.36 | $21.14 | $160.50 | $8.91 | USSS12−$12.00 | — | — | No | active |
| May 17, 202611:43 AM | $148.27 | $21.20 | $169.47 | $0.00 | — | — | — | No | active |
| May 16, 202611:49 AM | $148.27 | $21.20 | $169.47 | $0.00 | — | — | — | No | active |
| May 15, 202610:58 AM | $148.27 | $21.20 | $169.47 | $0.13 | SRUS02−$2.00 | — | — | No | active |
| May 14, 202611:56 AM | $148.40 | $21.23 | $169.63 | $0.00 | — | — | — | No | active |
| May 14, 202609:38 AM | $148.40 | $21.23 | $169.63 | $2.20 | — | — | — | Yes | active |
| May 10, 202610:28 AM | $146.20 | $21.18 | $167.38 | Initial | — | — | — | Yes | active |
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store(19 records) | |||||||||
| May 29, 202601:27 PM | $187.89 | $24.94 | $212.83 | $0.00 | — | — | — | Yes | active |
| May 29, 202601:27 PM | $187.89 | $24.94 | $212.83 | $0.16 | — | — | — | Yes | active |
| May 28, 202611:56 AM | $187.73 | $24.90 | $212.63 | $0.00 | — | — | — | Yes | active |
| May 28, 202611:55 AM | $187.73 | $24.90 | $212.63 | $0.09 | — | — | — | Yes | active |
| May 27, 202601:14 PM | $187.64 | $24.89 | $212.53 | $0.00 | — | — | — | Yes | active |
| May 27, 202601:13 PM | $187.64 | $24.89 | $212.53 | $0.00 | — | — | — | Yes | active |
| May 25, 202605:00 PM | $187.64 | $24.89 | $212.53 | $0.00 | — | — | — | Yes | active |
| May 25, 202604:59 PM | $187.64 | $24.89 | $212.53 | $0.80 | — | — | — | Yes | active |
| May 23, 202601:12 PM | $186.84 | $24.82 | $211.66 | $0.00 | — | — | — | Yes | active |
| May 23, 202601:11 PM | $186.84 | $24.82 | $211.66 | $10.38 | — | — | — | Yes | active |
| May 22, 202611:57 AM | $176.46 | $24.82 | $201.28 | $0.00 | — | — | — | Yes | active |
| May 22, 202611:56 AM | $176.46 | $24.82 | $201.28 | $0.08 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202612:00 PM | $176.54 | $24.84 | $201.38 | $0.00 | — | — | — | Yes | active |
| May 21, 202611:59 AM | $176.54 | $24.84 | $201.38 | $0.00 | USSS24−$24.00 | — | — | Yes | active |
| May 19, 202612:02 PM | $176.54 | $24.84 | $201.38 | $0.00 | — | — | — | Yes | active |
| May 19, 202612:01 PM | $176.54 | $24.84 | $201.38 | $0.32 | USSS24−$24.00 | — | — | Yes | active |
| May 18, 202612:00 PM | $176.22 | $24.77 | $200.99 | $0.00 | — | — | — | Yes | active |
| May 18, 202612:00 PM | $176.22 | $24.77 | $200.99 | $23.30 | USSS12−$12.00 | — | — | Yes | active |
| May 17, 202609:54 AM | $152.92 | $24.84 | $177.76 | Initial | — | — | — | Yes | active |
Reviews
No reviews yet — be the first to share your experience.
Sign in with Google to leave a review.
Specifications
Type
- VESC Based
- No
- Cooling
- Air
Electrical
- Voltage Range
- 48–72V
- Continuous Amps
- 80A
- Peak Amps
- 150A
- Max Phase Amps
- 350A
Motor Features
- Regen Support
- Yes
- Drive Mode
- Sinewave
- Sensor Mode
- Dual Mode
- Field Weakening
- Yes
- Self-Learning
- No
- Dual Motor Support
- No
- Controller Pairing
- No
Inputs
- Throttle Support
- Yes
- PAS Support
- No
Display
- Supports Display
- Yes
- Requires Display
- No
- Protocols
- SiAECOSYS ONE-LIN
Power Switch
- Supports Power Switch
- Yes
- Requires Power Switch
- No
- Requires Pre-charge
- No
Programming
- Via Display
- No
- Via Phone
- No
- Via PC
- Yes
Physical
- Weight
- 930 g
- IP Rating
- IP67
Ports & Connectors
Power Input2-position Screw Terminal Block
Power
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Battery - |
Phase Wires3-position Screw Terminal Block
Motor Phase
| Pin | Wire color | Function |
|---|---|---|
| 1 | Yellow | Phase A |
| 2 | Green | Phase B |
| 3 | Blue | Phase C |
Hall Sensor/
Hall Sensor
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | No color | None |
| 3 | Black | Ground |
| 4 | Yellow | Hall A |
| 5 | Green | Hall B |
| 6 | Blue | Hall C |
Function Harness (2×8)
Ignition
Power Switch
| Pin | Wire color | Function |
|---|---|---|
| 1 | Gray / Purple | Power Switch Signal |
Throttle / High Brake / Display
BrakeDisplayThrottle
| Pin | Wire color | Function |
|---|---|---|
| 1 | Purple | Brake Signal (High) |
| 2 | White | One-Wire Comm |
| 3 | No color | None |
| 4 | Black | Ground |
| 5 | Green | Throttle Signal |
| 6 | Pink | 5V Power |
Three Speed / Sport / Parking
BrakeDisplay
| Pin | Wire color | Function |
|---|---|---|
| 1 | Brown / White | Parking / E-Brake |
| 2 | Green / White | Gear Low |
| 3 | Yellow / White | Gear Sport |
| 4 | No color | None |
| 5 | Black | Ground |
| 6 | Black / White | Gear High |
Low Brake / Reverse
DisplayBrake
| Pin | Wire color | Function |
|---|---|---|
| 1 | No color | None |
| 2 | Gray / White | Gear Reverse |
| 3 | No color | None |
| 4 | Gray / Black | Brake Signal (Low) |
Program Port
UART
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Pink | 5V Power |
| 3 | Orange | UART TX |
| 4 | Blue | UART RX |
One Click Repair
COMM
| Pin | Wire color | Function |
|---|---|---|
| 1 | No color | None |
| 2 | Brown | One-Click Repair |
Main Connector
Alarm / Anti-theft Harness (2×4)
Alarm Power
security
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Red | Alarm Power |
Anti-theft Motor Lock
security
| Pin | Wire color | Function |
|---|---|---|
| 1 | Orange | Anti-Theft Key |
| 2 | Blue | Anti-Theft Signal |
| 3 | Yellow | Wheel Signal |
| 4 | No color | None |
Main Connector
