Power-STEM | Advanced Power Solutions & Electronics Manufacturing

About Power-STEM

A leading manufacturer of high-performance power electronics, delivering innovative and reliable solutions for global markets.

Our Mission

We design and manufacture car chargers, wall chargers, power banks, data cables, and other consumer electronic products with a relentless focus on quality, safety, and innovation.

With over 13 years of experience, 30+ mechanical and electronic engineers, and more than 300 employees, we are equipped to handle full-cycle product development and manufacturing.

13+

Years Experience

30+

Patents

300+

Engineers & Staff

100+

Independent Products

Our Products

Engineered for performance, safety, and reliability across global markets.

PS-733US/JP 300W AC Power Station

High-efficiency portable power solution with pure sine wave output.

PS-651 1500W Power Station

High-capacity power station ideal for outdoor and emergency use.

PS-615U GaN PD100W Wall Charger

Ultra-compact GaN charger with USB-C PD for fast charging.

PS-725C-30U Qi2.2 25W Wireless Charger

Qi2-certified magnetic wireless charger with fast charging.

PS-1007A Qi2 Portable Power Bank

Portable power bank with Qi2 magnetic wireless charging.

PS-656 Multifunction Power Strip

Smart power strip with USB ports and surge protection.

PS-472 Lightning Charging Cable

MFi-certified durable charging cable for Apple devices.

PS-179US Power Inverter

Compact car power inverter with AC and USB outputs.

1000.1 Mono Amplifier

High-power Class D amplifier for car audio systems.

PS-735A Right Angle USB-C Cable

Ergonomic right-angle USB-C to USB-C cable for convenience.

PS-953SS-30 Ultra-Slim Power Bank

Sleek, lightweight power bank with high energy density.

PS-718U GaN Charging Station

Multi-port GaN charging station for laptops and mobile devices.

View All Products

Our Advantages

Why partners around the world trust Power-STEM for their electronic manufacturing needs.

Complete Quality Certifications

Our factory has passed ISO9001, ISO14001, UL, PSE, BSCI audits and is a member of MFI, WPC, and USB-IF.

Products are certified for global compliance: UL, ETL, FCC, CE, Qi, USB-IF, RoHS, REACH, CB, PSE, and more.

One-Stop ODM & OEM Service

Full in-house capabilities: plastic injection, SMT, AI, wave soldering, re-flow, assembly, 100% aging test, and export packing.

Strong R&D team with 30+ engineers in ID design, 3D modeling, tooling, electronics (hardware & software), and packaging.

Frequently Asked Questions

Do you offer ODM/OEM services?

Yes, we provide full one-stop ODM and OEM services with in-house design, engineering, tooling, and manufacturing capabilities.

What certifications do your products have?

Our products are certified for UL, ETL, FCC, CE, Qi, USB-IF, CB, PSE, RoHS, REACH, MFI, and other regional requirements.

Where are your factories located?

We have manufacturing facilities in Dongguan, China and Chonburi, Thailand to serve global markets efficiently.

Can I request samples?

Yes, sample requests are welcome. Please contact us through the official website for more information.

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Power System Electronic Technology