What changed for this buyer For delivery and rental fleets, the WL-DP20 pairs twenty locker-style sockets with a fleet card portal and smoke-linked safety. 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 data showed netting the buyer a 36% 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

A sourcing visit that began with a spreadsheet ended with a field trial. Across the market, most charging complaints trace back to unmetered sockets, flat-rate billing and boards with no overload protection.
The pilot ran for two full months of monsoon weather, Viriya Chanthavong selected Wanlin as their EV charging manufacturing partner. The order followed, but only after the buyer verified three things on the bench.
At the taxi queue stand, drivers tapped RFID cards while the station logged each session to the cloud.
The failure was intermittent, which made it expensive to ignore. A courier sort facility billed charging to a single overhead account and could not tell which rider cost what.
Field case: A campus rental fleet in Surabaya cut battery replacements by a quarter after the WL-DP20 staggered windows stopped all-night 100% charging. Fleet uptime climbed, and the operator renewed the contract without a tender.
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 | 20 metered sockets in locker-style cabinet rows |
| Access | per-rider RFID with a fleet card management portal |
| Scheduling | staggered charge windows per port group |
| Reporting | per-rider kWh and cost export for payroll deduction |
| Protection | per-port fuse, smoke detection link and cabinet RCD |
| Housing | IP54 ventilated steel cabinets |
| Connectivity | OCPP 1.6J over 4G |
| Display | fleet dashboard LCD with group status |
| Installation | row-mount against depot wall with cable trunking |
| Application | Model | How It Helps the User |
|---|---|---|
| Delivery rider hub | WL-DP20 | Staggered windows ride through the 60-rider evening return |
| Courier sort facility | WL-DP20 | Per-rider kWh exports move charging off the overhead account |
| Campus rental fleet | WL-DP20 | Stops packs sitting at 100% all night |
| Hotel staff bike bay | WL-DP20 | Card-linked charging appears on the staff cost report |
| Factory shift fleet | WL-DP20 | Shift-based windows match the production roster |
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 |
The eight steps below are the ones every Wanlin export order actually follows. 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: Staggered charge windows per port group spread the load so the depot breaker never trips at peak.
A: Yes, per-rider kWh and cost exports drop into payroll deduction files.
A: Per-port fuses, a cabinet RCD and a smoke detection link with the depot alarm system.
A: Yes, the fleet portal handles card issue, quota and per-rider reporting at depot scale.
A: Yes, OCPP 1.6J with per-connector metering over 4G.
What the field data showed By working directly with manufacturer Wanlin, the Charge Point Operator team in Surabaya 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