Company Profile

360° Virtual Tour

Click and drag to view more

Company Overview

Focusing on wireless technology since 2006

Annual capacity of 20+ million pcs|OEM/ODM services available|

Over 19 Years of Industry Expertise
King-Serry began in 2006 with a dedicated R&D department at Nanshan High-Tech Park, Shenzhen, focusing on independently developing innovative hardware and software solutions. In 2012, we officially established Shenzhen King-Serry Electronics Co., Ltd. Today, our operations span 4,600+ square meters, with a passionate and skilled team of 100+ employees driving continuous growth.

Wide Product Range
We are a leading global one-stop supplier of safety products and smart home devices based in Shenzhen, specializing in the research, development, and production of mid-to-high-end intelligent solutions. Our diverse product portfolio includes wireless light switches & remote control switches, Wi-Fi smart switches & touch control smart switches, smart E26/E27 bulb socket holders, remote-controlled light sockets & wireless sockets, remote-controlled US plugs & smart plugs, bike and bicycle alarms, PIR motion sensors, welcome doorbells, bike light sets & tail light alarms. All products are independently developed and manufactured in-house, ensuring originality, quality, and performance from concept to delivery.

Why Choose Us

  • Expert Engineering Team: Top-tier professionals in software, hardware, and structural design.
  • Proven Track Record: Dozens of patents and 6 software copyrights.
  • National Recognition: Awarded National High-Tech Enterprise status in 2018.
  • Certified Quality: 3C, CQC, FCC, CE, PSE, IC, KC, RoHS, and more.
  • Global Reach: Trusted by clients across Europe, North America, Japan, Korea, and Southeast Asia.


Contact Us Now
Guided by the principles of sincerity, innovation, responsibility, and mutual benefit, we uphold integrity in every action, pursue creative solutions, take ownership of our commitments, and prioritize partnerships where all parties thrive. Our service philosophy, "Service creates value," reflects our dedication to delivering meaningful and impactful support that enhances our clients' success. Through our customer-first approach, relentless focus on service excellence, and commitment to shared success, we foster sustainable growth and enduring relationships, ensuring that every achievement benefits everyone involved. These values and strategies define who we are and drive us toward a future of collective progress. Contact us now to learn more.

Basic Information

Total Capitalization
US$1,000,000 to 1,999,999
Year Established
2012
Total Employees
100 to 149
Company Certificate
ISO 9001:2015
Product Certificate
FCC, ROHS, CE
Business Type
 Manufacturer ,  Online Seller ,  Exporter ,  Wholesaler

Trading Capabilities

Total Annual Sales
US$6,000,000 to 6,999,999
Export Percentage
85 percent to 89 percent
OEM Service
Yes
Small Orders Accepted
Yes
Brand Names
NA
Payment Terms
Paypal &T/T Transfer
Main Competitive Advantages
Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages
NA
Major Customer
NA
Export Markets
 Western Europe ,  North America ,  Eastern Europe ,  Australasia ,  Asia ,  Mid East/Africa

Business Registration Details

Registered Company
深圳市金西瑞电子有限公司
Registration Number
91440300052756301D
Company Registration Address
深圳市龙岗区龙城街道吉祥社区彩云路6号鼎裕科技园第3栋厂房401、501
* In China, company names and addresses are registered in Chinese only.

Production Capacity

Factory Information

Factory Size
4600 Square Metre
No. of Production Lines
6
Number of Production Staff
100 to 149
Number of QC Staff
10 to 19
Year Established
2012
Number of R & D Staff
5 to 9
Address
Floor 4, Building 3, Dingyu Science Park, No.6 Caiyun Road, Longcheng Street, Longgang District, Shenzhen, Guangdong, China

Other Production Capacity

Site Advantages
Strong Industrial Base Longgang is a key manufacturing hub within Shenzhen, with a well-established supply chain and concentration of skilled labor, particularly in electronics, hardware, and consumer products. Proximity to Global Shipping Ports Located near Yantian Port and Shenzhen Port, Longgang offers efficient international logistics, reducing delivery time and freight costs for overseas customers. Access to Advanced Manufacturing Technologies Shenzhen is known for its rapid prototyping and smart manufacturing capabilities, which help accelerate product development and improve quality.

Quality Control

Other Quality Control

Description of Quality Control/Technical Support Department
Our Quality Control Center is the backbone of our commitment to excellence, ensuring every product meets stringent industry standards before delivery. Equipped with advanced testing instruments and experienced inspectors, our QC Center performs rigorous inspections at every stage of production. From raw materials to finished goods, our quality control team conducts comprehensive checks to guarantee durability, performance, and safety. We follow ISO-compliant quality procedures, supported by detailed documentation and traceability throughout the manufacturing process.
Quality Control Procedures
1. Incoming Material Inspection All raw materials and components are inspected upon arrival. Only approved materials are released to production. 2. In-Process Quality Control (IPQC) Quality inspectors monitor the entire production process. Defective parts are immediately flagged for correction to prevent further defects. 3. 100% Functional Testing Every finished unit undergoes a fully functional test.

R&D Capabilities

Other R&D Capabilities

Procedures and Practices
1. Product Innovation Continuously develops new technologies and product features to enhance functionality, user experience, and competitiveness. 2. Customization & OEM/ODM Support Works closely with clients to design and develop customized solutions tailored to specific market demands or application scenarios. 3. Technical Documentation Prepares detailed technical documents, including schematics, firmware guides, and integration manuals for both internal use and client support.

Business Registration Profile

by SGS

The supplier information below has been obtained from relevant government agencies in the supplier's country and is subject to change without prior notice. Business Registration Profile verification procedures were conducted by SGS, a third-party credit agency

Read Disclaimer
Registered Address
Room 401, 501, Factory Building 3, Dingyu Technology Park, No.6, Caiyun Road, Jixiang Community, Longcheng Street, Longgang District, Shenzhen City
Incorporation Date
2012/08/27
Legal Form
Limited liability company
Company Status
Live
Registration Agency
Market Supervision Administration of Shenzhen Municipality
Registration No.
91440300052756301D
Authorized Capital
RMB510,000
Paid-Up Capital
NA
Import & Export License
Yes
Legal Representative
Li Jinshan
Business Scope
General business items are: technical development and sales of computer hardware and software, technical development of microcontroller hardware and software, domestic trade (The above does not include items that require pre-approval and are prohibited by laws, administrative regulations, and decisions of the State Council); import and export business (Except for projects prohibited by laws, administrative regulations, and decisions of the State Council, restricted projects must obtain a license before they can be operated.) The permitted business items are: production and sales of electronic products, circuit modules and chips.
Business Permit Expiry
2032/08/27
Shareholders
Li Jinshan;Yan Yuechu;Li Shiyan;Huang Shiyong

Certifications

Company Certifications
Image Standard /Number Issued by Available Date Scope/Range
  • ISO 9001:2015 ISO 9001:2015 Beijing Daluhangxing Quality Certification Center Co., Ltd.

    2025/06/04

    -

    2028/06/06

Product Certifications
Image Standard / Number Issued by Validity Product Name Model
  • FCC FCC Shenzhen Toby Technology Co., Ltd

    2021/11/04

    ~

    No Expiry Date

    Wireless Welcome Doorbell View list
  • ROHS ROHS Shenzhen Hongtai Testing Technology Co., Ltd.

    2023/07/06

    ~

    No Expiry Date

    Gate magnetic vibration alarms and probes View list
  • CE CE Shenzhen CST Testing Co., Ltd.

    2024/08/07

    ~

    No Expiry Date

    KS-SF31,KS-SF34R, KS-WLO2C KS-SF34L Remote-Controlled Wireless Bicycle Headlight & Smart Bike Alarm Taillight View list

OEM/ODM

Factory OEM/ODM Capabilities
You provide your specifications (color, logo, or functional changes). We provide a quote for the product and any applicable engineering/service fees. Our design team creates the mockups or functional samples for your approval. Once the sample is confirmed and fees are settled, we proceed with the customized production run.
Number of Production Lines
null
Years of OEM/ODM Experience
null

Send a direct inquiry to this supplier

0/ 1500
  • Instant Service

  • Leave us Feedback

  • Download App

    Scan the QR code to download

    iOS & Android
    iOS & Android
    (Mainland China)
  • Take Our Survey