INTELLIGENT MANUFACTURING
Global Intelligent Manufacturing Service Provider
Specializing in EV chargers, HVAC thermostats, energy storage equipment, portable power stations and precision PCBA processing, offering one-stop full-spectrum OEM & ODM customized R&D and manufacturing services.
PRODUCT CATEGORY
Our Product Range
We offer a comprehensive portfolio of products across new energy, intelligent control and electronic manufacturing, delivering trusted solutions to partners worldwide.
PRODUCTS
Explore Our Best-Selling Products
Explore our best-selling products, including smart thermostats, EV charging solutions and PCBA manufacturing services. Designed for reliable performance and flexible OEM/ODM customization, they help customers meet diverse application needs worldwide.
Building Trusted Smart Solutions
Founded in 2018, TWJ is a high-tech enterprise integrating independent R&D, intelligent manufacturing and global trade. We specialize in EV charging solutions, HVAC smart controls and PCBA manufacturing, providing one-stop OEM/ODM solutions for customers worldwide.
Backed by a modern production facility, an experienced R&D team and a comprehensive quality management system, we offer complete manufacturing services from product development and PCB design to SMT assembly and final product assembly, delivering reliable quality and efficient production for global partners.
CUSTOMIZATION ABILITY
Showcase of OEM/ODM Capabilities
We provide one-stop OEM/ODM solutions, covering R&D, manufacturing, testing, and private-label customization.
Independent R&D
Our engineering team provides circuit design, embedded development and customized PCBA solutions for diverse project requirements.
Flexible Manufacturing
From prototyping to mass production, our automated manufacturing ensures consistent quality and on-time delivery.
Private Label Customization
We provide OEM/ODM services including product design, software development, private label packaging and feature customization.
Global Delivery
Our reliable supply chain and quality management system ensure stable production, fast delivery and ongoing technical support worldwide.
SOLUTION
Smart Solutions for Diverse Industries
We provide reliable solutions for EV charging, HVAC intelligent control, and electronic manufacturing, supporting diverse industries with advanced technology, stable performance, and flexible OEM and ODM services.

HVAC Control Solution

Digital Energy Solution

Custom Control PCBA Solution
Smart Energy Control Solutions
TWJ supports energy and control projects with independent R&D, in-house electronics manufacturing and OEM/ODM delivery for global B2B partners.


EV Charging Solutions
Custom EV charger products and charger control boards for home, workplace and light commercial charging projects.
- AC charger product customization
- Charger PCBA and control module
- Safety protection and enclosure matching





OUR ADVANTAGES
Our Competitive Advantages
From product development to intelligent manufacturing, we provide integrated solutions tailored to global customer needs.
EV Charging Solutions
We provide AC and DC EV charging products and control solutions for residential, commercial and public applications. Our products deliver safe, reliable and efficient charging performance with flexible OEM and ODM customization.
HVAC Control Solutions
We develop smart thermostats, controllers and HVAC control systems for floor heating, heat pumps and commercial HVAC applications, enabling precise temperature control and energy-efficient operation.
PCBA Manufacturing Services
Our one-stop PCBA services include PCB design, component sourcing, SMT assembly, DIP soldering, final assembly, functional testing and aging tests to support projects of all sizes.
Your Trusted Electronics Manufacturing Partner
Combining innovation, intelligent manufacturing and strict quality control to deliver reliable one-stop electronic manufacturing solutions for global customers.
Professional R&D Team
Dedicated hardware and software engineers provide fast and flexible OEM/ODM development services.
Advanced Manufacturing
Equipped with 11 automated SMT production lines for efficient prototyping and mass production.
Strict Quality Control
Comprehensive quality control with functional, reliability and aging tests ensures consistent product performance.
Global Market Experience
Serving customers in 40 countries with extensive experience in European market requirements and global partnerships.
BLOG & NEWS
Latest News
Stay informed with the latest company updates, product innovations and industry insights in smart control and new energy solutions.

Hybrid Inverter: How It Manages Solar, Battery and Grid Power
Learn how a Hybrid Inverter manages solar, battery and loads through MPPT, backup control, BMS

AC EV Charger: What Makes Everyday Charging More Reliable?
Learn how an AC EV Charger works and how to evaluate power, current, protection, load

9 EV Charger Module Integration Checks Before Production
Learn 9 EV Charger Module checks for parallel control, thermal design, communication, fault handling and