LATEST MEWS
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- 025V1A Charger Certified | USB Charger Product and Source Factory Introduction
- 03How to confirm that a power adapter product has genuine CCC certification?
- 04Complete Guide to Power Adapters: From Basic Concepts to Professional Selection | Keyulong Technology
- 05Non-standard Power Adapter vs. Certified Power Adapter: How to Accurately Identify?
- 0612V2A Power Adapter (PSR) – A Cost-Effective Choice, a Reliable Partner for Security Surveillance and LED Lighting
4th Floor, Building 2, QinHui Road, Guxing Community, Xixiang Street, Bao'an District, Shenzhen, China
Quality Service
HomeQuality Service
Quality Service · Total Peace of Mind
“Quality is Dignity” — A full-chain quality control system from R&D to delivery
I. Quality Hard Commitments
✅ 8 Full Inspections · Quality is Dignity
✅ 100+ International Certifications: CCC / CE / UL / FCC / PSE / KC ……
✅ Flame Retardant Rating V0 · Standby Power ≤0.3W
✅ Ripple ≤200mV · Voltage Accuracy ±5% · Long-life Design
II. Fast Response Service
Standard Stock: Shipped within 24 hours on business days · Agile delivery
Full Lifecycle Technical Support: Selection → Sample → EMC rectification → Mass production → Retirement advice
10% emergency capacity reserved for strategic customers · Empowering partners
III. Customer Reputation
Industries served: Night lights, power tools, LED lighting, networking & communication equipment, security & surveillance, consumer electronics, industrial control, and more.
Global cumulative delivery: over 100 million power adapters · Proven quality
“Empowering Partners” reputation – preferred choice for long-term strategic cooperation
“Keyulong delivers not just power adapters, but peace of mind. From EMC rectification to mass production, the technical team accompanies every step. With a problem resolution rate of 98%, they truly provide ‘back-to-back’ partnership service.”
— Customer feedback from over 3,000 corporate clients
Empowering Partners, Making Every Watt Count
High-reliability power adapter custom expert · Total peace of mind
ISO9001:2015 · Full system compliance
Green energy saving (standby ≤0.3W)
V0 flame retardant + 8 full inspections
Key Account Hotline: 13590301618 (WeChat same as number)
Sales Inquiries: 18129821159
Website: www.szkeyulong.com | Search “Keyulong Power” on 1688
