Our Services
WELCOB are dedicated to delivering exceptional LED light source solutions to our global B2B clients. Our comprehensive service framework spans pre-sales, in-sales, and after-sales phases, ensuring seamless support from initial inquiry to final application.
Pre-Sales Services
We know that selecting the optimal LED light source is critical to your business success. Our pre-sales services are structured to provide clarity, expertise, and confidence in your decision-making process.
Free Product Consultation And Fast Technical Guidance
Whether you require DC COB, AC COB, or specialized solutions like bi-color, fishing, photography, RGBCW, drone, horticultural, glass COB LEDs, we provide tailored recommendations to meet your project needs.
Professional Custom Design Solutions
We provide customized services from concept design to prototype development for SMD & COB modules (from high-power COB (>1000W) to multi-color COB LEDs) that meet specific light efficiency, color temperature or size requirements.
Supporting a variety of processes such as eutectic bonding (suitable for ultra-high power COB) and multi-color powder coating process.
Sample Provision And Evaluation Support
Customized COB prototyping with 7-15 days rapid sampling!
We can provide free samples for you to evaluate.
Our technical team will assist you in testing and validating samples in practical applications to ensure their performance and compatibility meet your expectations.
In-Sales Services
Once you partner with us, our in-sales services ensure a streamlined and efficient process, allowing you to focus on your core operations.
Order Management And Tracking
Leveraging an advanced order management system, we offer real-time updates on order status. Transparent communication channels keep you informed at every stage, from confirmation to delivery, ensuring complete visibility.
Quality Assurance And Testing
Flexible MOQ (100pcs+) with dual QC checkpoints.
Each COB model undergoes multiple times photometric testing and aging protocols to guarantee compliance with our "High Quality, Zero Defect" philosophy.
RFID-Embedded Traceability From Chip To Final Packaging
For specific LED light sources, we can provide RFID tracing chip packaging technology according to customer needs, which greatly helps customers in logistics tracking, inventory management, asset monitoring, anti-counterfeiting traceability, etc., and is widely used in high-value, large-scale deployment or strictly regulated lighting scenarios such as shopping malls, factories, and smart city projects; for ordinary consumers, it simplifies the warranty process and improves product credibility, greatly improving the customer's brand image.
Logistics And Shipping Coordination
We provide flexible shipping solutions tailored to your timeline, including air, sea, and express options. Our logistics team manages export documentation and regulatory compliance, ensuring timely and secure delivery to your location.
After-Sales Services
Our service commitment continues even after product delivery. Our after-sales support aims to provide you with long-term protection and ensure the continued success of your business.
Technical Support And Troubleshooting
We provide comprehensive technical support to help you seamlessly integrate COB modules into your products. If you encounter any problems, our expert team provides prompt diagnostics and solutions to ensure the smooth progress of your project.
Warranty And Repair Services
Our products are backed by a standard warranty covering material and manufacturing defects. In the rare event of an issue, we provide efficient repair or replacement services to minimize downtime.
Feedback And Continuous Improvement
We value your insights and conduct regular feedback sessions to refine our offerings. By incorporating client suggestions, we ensure our products and services evolve to meet your changing needs, fostering a partnership built on trust.







