The part of the story that changed the buyer's math The WL-QR10 turns 10 metered sockets into wallet-paid sockets with wallet-based billing, offline tariff caching and daily settlement exports. 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 the field test actually measured netting the buyer a 33% margin against the previous supplier 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

It looked like a routine RFQ until the buyer mentioned what the last batch cost them. The quiet shift in the category is buyers moving from flat-rate power strips to metered, OCPP-connected stations.
Once the first 200 charging sessions reported back, Somchai Prasert selected Wanlin as their EV charging manufacturing partner. The purchasing manager signed after comparing failure modes, not just port counts and prices.
The bike shed had a row of scorched sockets and a handwritten notice telling riders to bring their own timers.
What looked like a price problem turned out to be a reliability problem in disguise. A street-site operator found riders abandoning sessions when the QR payment page took longer than ten seconds on the local network.
Field case: A shopfront chain in Chonburi replaced sun-faded stickers with the WL-QR10 UV-laminated per-port QR decals and tamper-proof covers. Scan success stayed above 99% through the hot season, and the chain added a second station at its flagship corner.
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:
Under the enclosure, the design separates metering from switching so readings stay stable at full load.
Core Features:
| Parameter | Wanlin Specification |
|---|---|
| Payment | QR linked to local wallets with per-kWh or per-time billing |
| Offline Mode | tariff rules cached locally, sessions complete without network |
| Ports | 10 metered sockets per cabinet |
| Connectivity | OCPP 1.6J over 4G with WiFi backup |
| Reconciliation | daily settlement reports and merchant portal export |
| Display | per-port LED plus LCD tariff board |
| Protection | per-port overload, leakage and surge |
| Housing | IP54 steel cabinet with IK10 panel |
| QR Hardware | unique per-port QR with UV-laminated tamper-proof decals |
| Application | Model | How It Helps the User |
|---|---|---|
| Street parking bay | WL-QR10 | Riders scan, charge and pay without an attendant on site |
| Market-side charging point | WL-QR10 | Wallet payment matches how market customers already pay |
| Shop-front paid socket | WL-QR10 | The shop earns on charging without touching cash |
| Transport hub waiting area | WL-QR10 | Short sessions with per-time billing fit waiting riders |
| Campus open area | WL-QR10 | Students pay from the same wallet they use for lunch |
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.
Put side by side with the alternatives the buyer had been using, the difference showed up in test time, not just features.
| 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 |
Here is the step-by-step path the order took, with the checkpoints that kept quality on track. A standard charging station OEM project then follows 8 steps:
Buyers from three countries said the same thing in their own words.
A: Median time runs under six seconds on local networks, with the socket locking at scan to hold the port.
A: Cached tariff rules let ports keep charging, and offline sessions reconcile automatically when the gateway returns.
A: Yes, UV-laminated tamper-proof decals are rated for a full outdoor season and reprint kits ship with spares.
A: Yes, both modes run at the same time on different port groups, with time-of-day tiers.
A: The LCD tariff board lists current rates for every port mode.
What the field test actually measured By working directly with manufacturer Wanlin, the Parking Lot Operator Buyer team in Chonburi reached 33% 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