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The short version The WL-CS12 runs 12 smart sockets on a single cabinet, balances total load under a 32kW ceiling, and meters every port to 1% accuracy over an OCPP 1.6J link. Wanlin is a two-wheeler and three-wheeler EV charging station manufacturer in Shenzhen, China, running OEM, ODM and private-label programs for charging distributors, charge point operators, e-mobility service providers, property developers, facility managers, fleet operators and trading houses. Measured result with resale margins holding at 36% across the first season for importers who source factory-direct, with per-model CE / RoHS / IEC 61851 documentation, OCPP 1.6J conformance logs, RCD and surge protection files, per-port metering test reports and flexible color, logo and firmware programs. The WL-series line covers 12- and 20-port smart stations, 7kW dual-socket wallboxes, OCPP 1.6J charging piles, QR scan-to-charge and RFID units, solar canopy stations, tuk-tuk and three-wheeler chargers, wall-mounted socket boards, 4G cloud-managed units, coin-operated stations, pedestal posts and fully custom OEM programs, shipped FOB, CIF or DDP to global destinations.
Published by Wanlin | Last updated: September 05, 2026 | Expertise: two-wheeler and three-wheeler EV charging station OEM and ODM manufacturing for global markets
The first message asked for a catalog. The real question surfaced two weeks later. Importers are consolidating charging SKUs with fewer factories that can document OCPP conformance and IP ratings.
The evaluation stretched over three weekends, Nguyen Hoang Minh selected Wanlin as their EV charging manufacturing partner. By the time the container was booked, the decision had already been validated by real riders.
In the back office, the CSMS dashboard showed all 20 ports online with live meter values, three days after installation.
A single customer complaint exposed a pattern the team had not connected. A fleet operator found sockets on cheap charging boards scorched within months of monsoon humidity and overnight loads.
Field case: A fleet operator in Penang piloted the WL-CS12 against two cheaper boards. Over eight weeks the cheap boards lost two sockets to overload while all 12 ports on the WL-CS12 logged 5,000 sessions without a fault, and the pilot converted to a fleet-wide order.
Why it matters for global buyers:
Wanlin runs OEM and ODM programs for buyers who want their own charging station line without building a factory. Customization covers:
What the pilot units had in common was a single mainboard with per-port metering and a contactor rated for real monsoon humidity.
Core Features:
| Parameter | Wanlin Specification |
|---|---|
| Ports | 12 output sockets with LED status lights |
| Output per Port | 220V AC, adjustable 1.5-3.3kW |
| Total Capacity | dynamic load balancing holds site demand under a set kW ceiling |
| Payment | QR code scan-to-pay, RFID cards and app wallet |
| Connectivity | OCPP 1.6J over WebSocket, 4G and WiFi dual-link |
| Display | 4.3-inch LCD with per-port status and tariff display |
| Protection | overload, short circuit, surge, leakage and overheat protection per port |
| Housing | IP54 galvanized steel cabinet with IK10 front panel |
| Metering | per-port energy metering with 1% accuracy class |
| Application | Model | How It Helps the User |
|---|---|---|
| Residential community bike shed | WL-CS12 | Twelve riders charge overnight while load balancing keeps the site breaker cool |
| Condominium basement parking | WL-CS12 | Per-port metering lets the HOA bill each unit for exact consumption |
| Motorcycle taxi queue stand | WL-CS12 | Drivers scan, charge and go while the station logs every session |
| University campus bike area | WL-CS12 | Student plans bill by kWh instead of flat-rate slot fees |
| Factory worker parking shed | WL-CS12 | Shift-based timers stop batteries cooking through the day |
Buyers who ship containers of charging stations need more than a price list. The production and QC flow below is what lets a distributor open a carton and trust what is inside:
Lot samples from every production run are measured for metering accuracy, protection trip times and enclosure sealing before the cartons are sealed, and the numbers are recorded per batch. A buyer can request those records with any order.
The rows below come from the buyer's own comparison notes, not from our brochure.
| Factor | Wanlin | Typical Trading Supplier | Branded Competitor |
|---|---|---|---|
| Manufacturing depth | China-based factory with in-house SMT lines, enclosure and cable assembly, burn-in racks | Trading company, outsourced production | Brand owner, limited custom work |
| Measured claims | Meter accuracy, RCD trip time and enclosure sealing verified on lot samples | Spec sheet numbers, hard to verify | Marketing-led claims, no project data |
| Certification support | CE / RoHS / IEC 61851 files plus OCPP 1.6J conformance logs per model | Incomplete documents, customs risk | Brand-level only, no per-order files |
| Customization | Colors, logo, firmware, tariff logic, packaging from low MOQ | Stock models only | Fixed SKUs, no private label |
| Price (factory direct) | Tiered factory pricing with volume discounts | Unpredictable markups | Premium brand pricing |
Moving from first contact to a sealed container took a sequence the buyer could follow in writing. A standard charging station OEM project then follows 8 steps:
The notes below are from follow-up calls after the first containers sold through.
A: The station watches total site current and trims per-port output when the ceiling set in firmware is approached, so old building wiring stays safe.
A: Yes, each port has its own QR linked to local wallet payment, plus RFID card and app options.
A: It speaks OCPP 1.6J over WebSocket and has passed integration with common CSMS platforms used across Southeast Asia.
A: Ports finish active sessions on cached tariff rules and the station reconnects automatically; local authorization keeps working offline.
A: Yes, logo printing, cabinet colors and custom port labels start from 50 units.
Measured result By working directly with manufacturer Wanlin, the Energy Solutions Trading Company Buyer team in Penang reached 36% higher margins on its charging line while keeping rider tariffs competitive. With verified metering data, real certification files, honest IP ratings, flexible OEM customization and a factory that answers protocol questions in hours, Wanlin has become their trusted EV charging manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com