Regulated Variable Power Supply
CN
About regulated variable power supply
Where to Find Regulated Variable Power Supply Suppliers?
China remains the global epicenter for regulated variable power supply manufacturing, with key production clusters concentrated in Guangdong and Zhejiang provinces. Shenzhen, within Guangdong, hosts a dense ecosystem of electronics manufacturers specializing in precision power equipment, supported by mature PCB fabrication, surface-mount technology (SMT), and automated testing infrastructure. Ningbo in Zhejiang complements this with strong capabilities in industrial design and metal enclosure fabrication, enabling integrated benchtop unit assembly.
These regions benefit from vertically aligned component sourcing—transformers, rectifiers, voltage regulators, and digital displays are available within 50km supply radii, reducing lead times and logistics costs. The proximity to Shenzhen and Ningbo ports facilitates efficient export operations, with standard air freight delivery to North America and Europe achievable within 7–10 days. Monthly production capacity across verified suppliers ranges from 1,000 to over 10,000 units, depending on model complexity and output specifications.
How to Choose Regulated Variable Power Supply Suppliers?
Procurement decisions should be guided by technical, operational, and transactional due diligence:
Quality Assurance Verification
Confirm adherence to international standards such as CE, RoHS, and ISO 9001. While not all suppliers list formal certifications in their profiles, consistent product compliance can be inferred from design features including overload protection, ripple suppression, and stable voltage/current regulation. Request test reports for line and load regulation performance, especially for laboratory-grade models requiring ±0.1% stability.
Production and Customization Capacity
Evaluate supplier capability based on:
- In-house PCB assembly and firmware programming for digital models
- Support for custom labeling, packaging, and UI language localization
- Ability to modify output ranges (e.g., 0–60V/5A) or integrate USB/RS-232 interfaces
Suppliers like Shenzhen Chenzhou Technology Co., Ltd. explicitly offer customization in color, material, size, and graphic elements, indicating flexibility for OEM partnerships.
Transaction Reliability Indicators
Prioritize suppliers with documented on-time delivery rates exceeding 95%, response times under 6 hours, and transparent pricing structures. Reorder rates below 15% suggest broad market access rather than deep buyer dependency, which may indicate competitive pricing and reliable fulfillment. Use incremental order scaling—start with single-unit purchases to validate quality before committing to volume procurement.
What Are the Best Regulated Variable Power Supply Suppliers?
| Company Name | Location | Main Products | Online Revenue | On-Time Delivery | Avg. Response | Reorder Rate | Min. Order Flexibility | Price Range (USD) |
|---|---|---|---|---|---|---|---|---|
| Dongguan Longwei Electronic Technology Co., Ltd. | Guangdong, CN | Switching Power Supply, Testing Equipment | US $190,000+ | 96% | ≤6h | 25% | 1 piece | $30–$169 |
| Shenzhen Chenzhou Technology Co., Ltd. | Guangdong, CN | Adjustable Switching DC Supplies | US $130,000+ | 96% | ≤5h | <15% | 1 set | $40–$74 |
| Shenzhen Kingmax Technology Co., Ltd. | Guangdong, CN | Laboratory & Repair Equipment | US $70,000+ | 96% | ≤5h | <15% | 1–2 pieces | $47–$63 |
| Ningbo Jiuyuan Electronic Co., Ltd. | Zhejiang, CN | Switching Power Supply, Furniture | US $50,000+ | 92% | ≤2h | <15% | 1 piece | $35–$505 |
| Foshan Shunde Yaogong Electronic Technology Co., Ltd. | Guangdong, CN | Soldering Stations, Power Supplies | US $10,000+ | 100% | ≤2h | <15% | 2 sets | $12–$35 |
Performance Analysis
Dongguan Longwei leads in revenue volume and offers some of the lowest entry prices ($30 for 30V/5A models), though its higher reorder rate (25%) may reflect customer dissatisfaction or competitive pressure. Foshan Yaogong stands out with a perfect 100% on-time delivery record and sub-$15 analog units, ideal for cost-sensitive buyers prioritizing reliability. Shenzhen-based suppliers dominate responsiveness and technical variety, offering both analog and 4-digit digital displays with USB integration. Buyers seeking high-power models (e.g., PS6050 at 3000W) will find Ningbo Jiuyuan as a primary source, despite its lower online revenue footprint.
FAQs
What is the typical MOQ for regulated variable power supplies?
Most suppliers support low-volume sampling with minimum order quantities of 1–2 pieces. Bulk pricing typically activates at 5+ units, with select suppliers offering tiered discounts beyond 50 or 100 units.
What are common lead times after order confirmation?
Standard orders are fulfilled within 7–15 days. Custom configurations involving firmware changes or mechanical redesign may extend lead times to 25 days. Air shipping adds 5–10 business days for international delivery.
Do suppliers provide technical documentation and compliance files?
Documentation availability varies. Leading suppliers often provide datasheets, user manuals, and safety warnings in English. For regulatory compliance (CE/RoHS), request product test reports or self-declaration letters. Independent third-party verification is recommended for critical applications.
Can I request product modifications?
Yes, multiple suppliers—including Shenzhen Chenzou and Dongguan Longwei—support customization of output specifications, front-panel labeling, packaging, and interface options. Submit detailed technical requirements early in negotiations to assess feasibility and tooling costs.
What payment and transaction protections are available?
Secure transactions through milestone-based payments, with partial upfront deposits (30–50%) and balance release upon shipment. Leverage platform-backed trade assurance programs where available to mitigate non-delivery or quality disputes.
