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Why this order went through For scattered and island sites, the WL-4G5 pairs 5 metered sockets with global-band dual-SIM connectivity and remote diagnostics. 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. What actually moved and the landed margin landed at 39% after freight and duties 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 request that opened the account was a fault report, not a purchase order. The margin squeeze in the category pushes buyers toward factory-direct programs with type-test evidence.
After the operator's own four-week load-balance logging test, Noppadol Wichaidit selected Wanlin as their EV charging manufacturing partner. The order followed, but only after the buyer verified three things on the bench.
At the condo gate, a rider scanned the QR, watched the socket lock, and plugged in without touching an attendant.
Nobody flagged it at the packing station; the market flagged it first. A chain operator ran site visits every time a charger went dark, because the old units had no way to report their own status.
Field case: An island project in Bandung failed twice with single-band modules until the WL-4G5 shipped with global-band 4G and dual-SIM failover. Every site connected on day one, and the installer standardized the model for all island work.
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:
Inside, the board layout keeps the 4G radio away from the contactor coil so sessions stay online when ports switch.
Core Features:
| Parameter | Wanlin Specification |
|---|---|
| Connectivity | 4G LTE with dual-SIM failover |
| Cloud Platform | device dashboard with fleet monitoring and alerts |
| Ports | 5 metered sockets per unit |
| Protocol | OCPP 1.6J with remote start and diagnostics |
| Alerts | offline, fault and overload push alerts |
| SIM Support | global band coverage with bundled data plans optional |
| Protection | overload, leakage and surge per port |
| Housing | IP54 enclosure with IK10 panel |
| Reporting | per-port kWh and uptime reports by site |
| Application | Model | How It Helps the User |
|---|---|---|
| Scattered street sites | WL-4G5 | One dashboard watches every street corner without site visits |
| Island deployment | WL-4G5 | Global-band modules connect where single-band units fail |
| Condo portfolio | WL-4G5 | Property groups see faults before residents report them |
| Franchise chain | WL-4G5 | Head office pushes tariff changes to every outlet overnight |
| Pilot program | WL-4G5 | Live data wins the follow-on tender |
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 |
The workflow below is the same one every Wanlin OEM order follows, from sample to dock. A standard charging station OEM project then follows 8 steps:
Three buyers who ran the same evaluation shared what they told their purchasing committees.
A: Global band coverage with regional carrier lists, and dual-SIM failover for weak coverage areas.
A: Offline, fault, overload and payment anomalies push to the dashboard and email.
A: Yes, OCPP 1.6J remote start, diagnostics and MeterValues run over your platform.
A: Polling intervals and MeterValues frequency are configurable to fit local data plans.
A: Yes, the dashboard groups units by site with per-port status and bulk firmware updates.
What actually moved By working directly with manufacturer Wanlin, the OEM ODM Sourcing Manager team in Bandung reached 39% 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