Why Choose Us
Precise Current Delivery — No Throttling Under Daily Load
12-tube controllers live or die by current consistency. When a passenger tricycle carries 2–4 people through stop-and-go traffic, each acceleration demands a current surge. If the controller cannot sustain 30A–35A output without thermal throttling, the vehicle slows down, ride quality drops, and drivers lose fares. The KH 12-tube controller maintains rated current output under continuous operation — the same performance at hour eight as hour one. This is why the 12 tube brushless controller for passenger tricycle segment demands stable current delivery above all else.
48V/60V/72V Universal — One SKU for Mixed Fleets
Fleet operators running mixed-voltage tricycles face a persistent inventory problem: three controller SKUs, three sets of spare parts, three wiring diagrams. One wrong controller on the wrong voltage platform means immediate failure on power-up. The KH 12-tube controller auto-detects battery voltage at startup and configures operating parameters accordingly — one part number, one wiring diagram, one spare parts bin.
13 Years of Controller-Only Focus
Kehuan has manufactured
Electric tricycle controllers since 2012 — not motors, not batteries, not accessories. Controller technology is our core competency, backed by >5% annual R&D investment and a university-industry partnership with Guilin University of Electronic Technology since 2016. 1,000+ B2B clients across Southeast Asia, South Asia, and Latin America rely on Kehuan controllers for daily fleet operation.
Integrated Drive System Supply
Compatibility Guide
Motor Compatibility
| Motor Type | Compatibility | Notes |
| Brushless DC motor (square wave) | Fully compatible | Default configuration |
| PMSM motor (sine wave) | Compatible with firmware update | Contact factory for PMSM mapping |
| 500W rated motors | Fully compatible | Primary target power class |
| Below 500W (350W) | Compatible | Current limit adjustable via firmware |
| Above 500W (800W+) | Check with factory | Consider 18-tube variant |
Vehicle Compatibility
| Vehicle Type | Typical Motor | Load Range | Suitability |
| Passenger e-trike | 500W | 2–4 passengers | Primary target |
| Light cargo tricycle | 500W | 200–300kg | Fully compatible |
| Delivery trike (urban) | 500W | 150–250kg | Fully compatible |
| Heavy cargo tricycle | 800W+ | 400kg+ | Consider 18-tube variant |
Comparison
12-Tube vs 6-Tube vs 18-Tube — Which Tube Count Fits Your Operation?
| Parameter | 6-Tube | 12-Tube (This Product) | 18-Tube |
| Current Limit | 15A–20A | 30A–40A | 40A–45A |
| Rated Power | 250W–350W | 500W | 800W–1000W |
| Target Load | Single rider | 2–4 passengers / 200–300kg cargo | 300–600kg heavy cargo |
| Price Point | Lowest | Mid-range | Premium |
| Fleet ROI | Budget replacement | Best value for passenger/light-cargo | Heavy-duty operations |
12-tube is the optimal choice for passenger and light-cargo fleets. 6-tube controllers cannot sustain the current demands of multi-passenger loads. 18-tube controllers cost 40–60% more and are oversized for 500W applications. 12-tube delivers the best reliability-per-dollar in the passenger and light-cargo segment.
Square Wave vs MOSFET Configuration — Buyer Terminology
B2B buyers searching for a 12 MOSFET brushless controller for light cargo tricycle applications are specifying the same product using different terminology. "12 tube" and "12 MOSFET" refer to the same 12 power transistor configuration — "tube" is the Chinese manufacturing term, "MOSFET" is the international electronics standard. The KH 12-tube controller uses 12 MOSFETs in its power stage, and both search terms lead to this product.
