homepage - DEFON Electronics

What We Do

Electronic Transformers

Magnetic Dimmable Transformers (12V / 24VDC) – Custom engineered for phase-cut dimming compatibility
Low Voltage Landscape Transformers – Built for outdoor reliability and consistent power delivery
EI Transformers & Toroidal Transformers OEM– High-efficiency laminated and toroidal designs for industrial and commercial applications

Power Conversion & Control Modules

LED Drivers and Power Modules – Constant voltage / constant current drivers for demanding environments

Inductors & Coils

Custom Inductors – High-current, high-frequency designs for power supply and EMI filtering applications
Chokes & Coils – Precision wound components for RF, induction, and industrial power applications

OEM / ODM Engineering Services

Beyond standard products, DEFON operates as an extension of our customers’ engineering teams:

Custom Magnetic Transformer Design – From concept to production, optimized for your electrical and mechanical requirements
Power Matching & System Compatibility Engineering – Ensuring seamless integration between power sources, drivers, and loads
Fixture Design, Tooling & Mechanical Integration – Complete mechanical development for custom enclosures and mounting systems
PCBA Design & Manufacturing – In-house PCB assembly for integrated power and control solutions
Compliance & Certification Support – UL / ETL / CE / RoHS engineering and documentation
Reliability & Environmental Testing – Thermal cycling, load testing, and accelerated life validation

System-Level Power Solutions

DEFON differentiates itself through a system-level engineering approach. We design transformers, drivers, and control interfaces as matched systems — not standalone components. This ensures:

Compatibility – Seamless integration with LED loads, dimming curves, and field wiring conditions
Reliability – Engineered for outdoor thermal profiles, voltage fluctuations, and continuous duty cycles
Efficiency – Optimized power conversion with minimal losses across the operating range

Featured Products

About Us

DEFON Electronics is an engineering-driven manufacturer of magnetic components and power systems. Founded in 2009, we serve global OEMs with vertically integrated design and production.

What We Do

We design and manufacture transformers, inductors, power modules, and complete power systems. Our engineering team works as an extension of our customers’ development efforts — from concept to certified production.

Why DEFON

Vertically integrated – In-house tooling, winding, PCBA, and testing
Engineering-led – We design for compatibility, reliability, and real-world conditions
Globally positioned – U.S. sales office (Tucson) + manufacturing in China
Certified quality – UL/ETL, CE, RoHS. ETL listed to UL8750 and UL5085

Our Commitment

We deliver reliable, field-proven power solutions that help our customers build better products and compete with confidence.

Our Strengths

Deep engineering know-how in power electronics

Our strength lies in deep engineering know-how rather than surface-level assembly.
From power derating and thermal management to voltage matching and system testing, our engineering team supports every project with practical solutions that reduce risk and improve real-world performance.

25+ Engineering + Power + Lighting Integration

With over 25 years of experience in power electronics and outdoor lighting applications, DEFON Electronics integrates fixtures, drivers, and transformers as one complete system.
By designing lighting products and power solutions together, we ensure electrical compatibility, stable performance, and long-term reliability in outdoor environments. or via approved audited suppliers.

Consistent Communication & On-time Delivery