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VOTOL EM80 GTSP sine wave controller with CAN BUS display protocol. 48V-72V, 55A continuous / 80A boost battery current, 230A peak phase current. 18-MOSFET design with IP65 waterproofing at ~1kg. Supports FOC sinewave drive with 150% flux weakening for extended speed range. Hall sensored with regenerative braking. Programmable via PC with USB adapter cable. Designed for 3-4kW PMSM/BLDC motors — recommended for QS Motor QS90/QS120. Ships with function harness and USB programming cable. CAN BUS version for use with CAN-compatible displays.

In brief: 48–72V controller. 55A continuous. 80A peak. Sinewave, dual mode, regen, field weakening support. From $84 across 3 sellers.

Specs verified Jul 20, 2026

Where to Find

Prices tracked across 4 sellers

* Shipping estimates are for the contiguous US and may vary by location.

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Price History

Price History
Price changes tracked by the crawler

Current best price $84.00. Over the past 90 days: low $84.00, high $150.71, average $105.73 — down 21% vs average.

  • Alibaba - Taizhou Quanshun Electric Drive Technology Co., Ltd.
  • AliExpress - SIAECOSYS Official Store
  • AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
May 12May 19May 26Jun 2Jun 9Jun 16Jun 23Jun 30Jul 7Jul 14$80.00$100.00$120.00$140.00$160.00
All Records
31 price records in this period
DatePriceShippingTotalChangeCouponRatingSalesIn StockStatus
Alibaba - Taizhou Quanshun Electric Drive Technology Co., Ltd.(1 record)
Jun 3, 202609:38 PM$84.00$84.00InitialYesactive
AliExpress - SIAECOSYS Official Store(14 records)
May 29, 202603:23 PM$91.68$46.40$138.08$0.12Yesactive
May 28, 202601:52 PM$91.56$46.34$137.90$0.06Yesactive
May 27, 202603:13 PM$91.50$46.31$137.81$0.00Yesactive
May 25, 202607:39 PM$91.50$46.31$137.81$0.25Yesactive
May 23, 202603:18 PM$91.25$46.19$137.44$5.07Yesactive
May 22, 202601:40 PM$86.18$46.19$132.37$0.06
USSS05−$5.00
Yesactive
May 21, 202601:43 PM$86.24$46.22$132.46$0.00
USSS12−$12.00
Yesactive
May 19, 202601:46 PM$86.24$46.22$132.46$0.24
USSS05−$5.00
Yesactive
May 18, 202601:44 PM$86.00$46.09$132.09$5.31
USSS12−$12.00
Yesactive
May 17, 202611:47 AM$91.31$46.22$137.53$0.00Yesactive
May 16, 202611:53 AM$91.31$46.22$137.53$0.00Yesactive
May 15, 202611:03 AM$91.31$46.22$137.53$0.06
SRUS02−$2.00
Yesactive
May 14, 202612:10 PM$91.25$46.28$137.53$0.19
SRUS04−$4.00
Noactive
May 14, 202609:38 AM$91.44$46.28$137.72InitialYesactive
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store(16 records)
Jul 20, 202608:02 AM$150.71$24.92$175.63$15.61Yesactive
May 29, 202606:40 PM$135.10$24.90$160.00$0.00Noactive
May 28, 202604:38 PM$135.10$24.90$160.00$0.06Yesactive
May 27, 202605:59 PM$135.04$24.89$159.93$0.26Yesactive
May 25, 202610:34 PM$134.78$24.82$159.60$0.00Noactive
May 23, 202605:51 PM$134.78$24.82$159.60$7.48Yesactive
May 22, 202603:48 PM$127.30$24.82$152.12$0.06
USSS05−$5.00
Yesactive
May 21, 202603:52 PM$127.36$24.84$152.20$0.00
USSS12−$12.00
Yesactive
May 19, 202603:54 PM$127.36$24.84$152.20$0.25
USSS05−$5.00
Yesactive
May 18, 202603:51 PM$127.11$24.77$151.88$7.74
USSS12−$12.00
Yesactive
May 17, 202601:56 PM$134.85$24.84$159.69$0.00Yesactive
May 16, 202602:02 PM$134.85$24.84$159.69$0.00Yesactive
May 15, 202601:10 PM$134.85$24.84$159.69$0.06
SRUS02−$2.00
Yesactive
May 14, 202603:25 PM$134.91$24.85$159.76$0.06
SRUS04−$4.00
Noactive
May 14, 202609:38 AM$134.97$24.87$159.84$0.06Yesactive
May 12, 202611:38 AM$134.91$24.85$159.76Initial
SRUS07−$7.00
Yesactive

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Specifications

Type

VESC Based
No
Cooling
Air

Electrical

Voltage Range
48–72V
Continuous Amps
55A
Peak Amps
80A
Max Phase Amps
230A

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 CAN BUS

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
1 kg
Dimensions (L×W×H)
180mm × 95.5mm × 55.6mm
IP Rating
IP65

Ports & Connectors

Power Input2-position Screw Terminal Block
Power
PinWire colorFunction
1RedBattery +
2BlackBattery -
Phase Wires3-position Screw Terminal Block
Motor Phase
PinWire colorFunction
1YellowPhase A
2GreenPhase B
3BluePhase C
Hall Sensor/
Hall Sensor
PinWire colorFunction
1Red5V Power
2No colorNone
3BlackGround
4YellowHall A
5GreenHall B
6BlueHall C
Alarm / Anti-theft Harness (2×4)
Alarm Power
security
PinWire colorFunction
1BlackGround
2RedAlarm Power
Anti-theft Motor Lock
security
PinWire colorFunction
1OrangeAnti-Theft Key
2BlueAnti-Theft Signal
3YellowWheel Signal
4No colorNone
Main Connector
Function Harness (2×8)
Ignition
Power Switch
PinWire colorFunction
1Gray / PurplePower Switch Signal
Low Brake / Reverse
DisplayBrake
PinWire colorFunction
1No colorNone
2Gray / WhiteGear Reverse
3No colorNone
4Gray / BlackBrake Signal (Low)
Three Speed / Sport / Parking
BrakeDisplay
PinWire colorFunction
1Brown / WhiteParking / E-Brake
2Green / WhiteGear Low
3Yellow / WhiteGear Sport
4No colorNone
5BlackGround
6Black / WhiteGear High
Throttle / High Brake / Display
BrakeCAN BusThrottle
PinWire colorFunction
1PurpleBrake Signal (High)
2WhiteCAN High
3YellowCAN Low
4BlackGround
5GreenThrottle Signal
6Pink5V Power
Program Port
UART
PinWire colorFunction
1BlackGround
2Pink5V Power
3OrangeUART TX
4BlueUART RX
One Click Repair
COMM
PinWire colorFunction
1No colorNone
2BrownOne-Click Repair
Main Connector

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