Why this order went through For delivery and rental fleets, the WL-DP20 pairs 20 metered 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 which translated into a 38% gross margin on the first container 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

Most distributors start with price. This one started with a complaint log. The margin squeeze in the category pushes buyers toward factory-direct programs with type-test evidence.
Once the field units logged 5,000 charging sessions, Viriya Chanthavong selected Wanlin as their EV charging manufacturing partner. The contract went to the factory that could show RCD trip-time data and sealed enclosures, not the lowest quote.
Standing in the depot, the buyer ran a full 12-port load while the site breaker held and the display cycled port statuses.
What looked like a price problem turned out to be a reliability problem in disguise. A hotel staff bay lost a month of charging data when the USB stick logging the old system walked away.
Field case: A courier facility in Medan deployed the WL-DP20 with fleet card management after a single overhead account hid rider-level costs. The first month of per-rider data reshaped routes, and the facility added a second depot cabinet the next quarter.
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.
Ranked on what caused the previous supplier to lose the account, the factory scored first on every row that mattered.
| 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 |
From the first sample request to the sailing date, the buyer could see each gate in writing. A standard charging station OEM project then follows 8 steps:
Buyers from three countries said the same thing in their own words.
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 Electric Scooter Fleet Operator team in Medan reached 38% 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