Full guidance on the production process of Haisen UV ballasts

uv ballast production

Full guidance on the production process of Haisen UV ballasts

This article provides an in-depth look at Haisen’s state-of-the-art manufacturing process for producing UV ballasts. We will examine the end-to-end operations, from procurement of raw materials to final testing and packaging, that go into making Haisen’s high-performance UV ballasts.

1.Raw Material Procurement

Haisen carefully selects and qualifies all raw materials needed for UV ballast production. The main components include inductors, capacitors, resistors, and printed circuit boards (PCBs).

All raw materials must meet stringent quality and certification requirements. All materials sourced from approved suppliers must meeting the specifications for the ballast design.

Printed circuit boards form the backbone of the UV ballast. Haisen works closely with its PCB partners to ensure the boards are manufactured to exacting requirements. The PCB suppliers must be ISO certified and capable of supplying IPC Class 3 boards. All PCBs must pass minimum quality checks for soldermask adhesion, hole wall integrity, and trace spacing. They also undergo electrical testing to validate there are no shorts or opens.

By carefully controlling its raw material supply chain, Haisen can guarantee the quality and reliability of its UV ballasts. Procuring certified components from qualified suppliers is the crucial first step in its manufacturing process.

2.Incoming Quality Control

A crucial step in Haisen’s UV ballast manufacturing is the incoming quality control process. All raw materials purchased by Haisen, including inductors, capacitors, resistors, and PCB boards, must go through rigorous testing before being approved for production.

This incoming inspection ensures that all components meet the strict quality standards set by Haisen. Only materials that pass these tests will be able to withstand the demanding performance requirements of the finished UV ballasts.

The quality control team utilizes several methods to thoroughly test each raw material batch. Visual inspections check for any damage, contamination or defects. Dimensional testing verifies that the materials are within the required size tolerances. Samples also undergo functional testing to confirm they operate as intended under simulated conditions.

For critical components like printed circuit boards, Haisen employs additional electrical tests and x-ray inspections. This detects any hidden flaws or weaknesses that could lead to premature field failures. By identifying and rejecting substandard materials at this early stage, Haisen avoids wasted time and resources further down the production line.

We understands that reliable, uniform materials are the foundation for manufacturing high-quality UV ballasts. This meticulous incoming inspection process has been a key factor in Haisen’s reputation for excellence within the industry.

3. PCB Population

Once the PCB boards have passed incoming quality control, they move to the PCB population stage. This is where the electronic components like resistors, capacitors, and integrated circuits are attached to the boards.

At Haisen, PCB population involves both machine and manual assembly processes. For high volume production, Haisen utilizes advanced pick-and-place machines to rapidly and precisely place tiny surface mount components onto the boards. These specialized machines use computer vision and feeders to pick components and accurately position them for soldering.

However, for some complex boards, manual assembly is still required. Skilled operators use microscopes and tweezers to carefully place tiny components, ensuring correct positioning and orientation. They also hand solder connections, especially for sensitive components. While manual assembly takes more time, it allows precision placement of intricate parts.

Haisen follows strict protocols during PCB population to prevent errors and defects. Machines are calibrated daily and inspectors frequently check samples from each batch. For manual assembly, operators undergo extensive training and follow detailed work instructions. Close monitoring at this stage helps achieve the high reliability required for UV ballast products.


The subassembly process involves taking the populated PCBs from the previous steps and installing them into plastic housings. At Haisen, this is an intricate manual process requiring skilled technicians.

The plastic housings are molded in-house to exact specifications using industrial plastic injection molding machinery. The housings provide protection, heat dissipation, and electrical insulation for the PCBs inside.

Technicians use specialized tools and jigs to precisely fit the PCBs into the housings. The PCBs are carefully aligned and seated into connectors and mounting points within each housing. The technicians ensuring proper alignment and fitment, with no gaps, play or wiggle room when fully installed.

Great care is taken to avoid any stresses, flexing, or damage to the populated PCBs during installation into the plastic housings. The technicians inspect for any issues as they work and double-check their work when finished.

Proper insertion and fitment is critical not only for function but for UL safety certifications. Any mistakes could lead to shorts, arcing, overheating or other dangerous failures.

Once subassembly is complete, the PCBs are firmly encapsulated within the protective plastic housings. The units then move to the next stage of final testing and inspection.


5.Semi-finished product testing

Haisen places a strong emphasis on testing to ensure the highest quality UV ballasts. Every subassembly undergoes 100% testing before moving to final assembly. The main tests performed are:

– Leakage testing – This test ensures there are no current leaks in the subassembly that could lead to electrical shorts or shocks. Devices are immersed in a liquid bath and technicians carefully measure any current leakage.

– Resistance testing – The resistance across different points in the circuitry is measured to verify it is within specifications. Out of tolerance resistance can lead to excessive heat generation or component failure.

– Voltage testing – Subassemblies are powered up and the voltages at different nodes in the circuit are measured. This confirms the components are operating at their rated voltages. Too high or too low voltage can damage parts over time.

Every subassembly must pass 100% testing before proceeding. This stringent testing regime guarantees every UV ballast shipped by Haisen meets the highest quality and safety standards.


6.Final Assembly

The final assembly stage is when all the components and subassemblies come together to create the finished UV ballast product. At Haisen, this process happens across several automated and manual assembly lines.

The enclosure for the ballast is first prepared by cleaning and pre-treating the metal housing. Skilled technicians then begin inserting all of the subassemblies according to the precise assembly drawings. This includes placing the completed PCB, wiring harnesses, power components, and other parts into the enclosure.

Great care is taken during this stage to ensure proper alignment, fit, and insertion of components. The assemblers use automated screw drivers and presses to quickly and reliably secure the parts inside the housing without damage. Extensive checks are conducted to guarantee no wires are pinched and all connections are tight.

Once fully populated with components, the ballasts proceed down the line where the housing cover is aligned and screwed into place. Pressure and leak testing may also be conducted to validate the integrity of the enclosure. The final result is a fully assembled UV ballast ready for comprehensive testing.


7.100% finished products Testing

Every single finished UV ballast produced by Haisen undergoes rigorous final testing before being approved for packing and shipping. This 100% testing ensures only the highest quality products leave Haisen’s factory.

The main final tests performed are:

– **Leakage Testing** – Each ballast is powered on and tested for any current leakage. Even the slightest leakage could indicate a potential hazard or point of product failure down the line.

– **Insulation Testing** – Ballasts undergo high voltage insulation testing to detect any weak points in insulation that could lead to electrical shorts.

– **Functionality Testing** – Ballasts are tested for proper functionality by powering them on and verifying correct input/output voltages and waveform output. Any ballasts not performing to strict specifications are rejected.

– *Aging Testing** – Ballasts are powered on for extended periods, from 8-48 hours depending on model, and monitored to verify stable operation under continuous use conditions.

Only after passing all testing parameters 100% are the UV ballasts approved to move to packing and shipping to customers. Haisen’s rigorous final testing results in some of the most reliable UV ballasts available on the market today.

8.Aging Testing


Aging tests are a critical part of the manufacturing process for Haisen UV ballasts to ensure reliability and durability. UV ballasts experience temperature cycling and humidity during operation which can degrade components over time. Haisen utilizes accelerated life testing methods to validate that their ballasts can withstand years of use.

The aging tests are conducted after initial functional tests but before the ballasts are packaged for shipping. Samples from each production batch are placed inside environmental test chambers where temperature and humidity are precisely controlled. The aging test profile simulates 3-5 years of real-world operating conditions that the ballasts may encounter.

Key parameters that are cycled during the aging test include:

– Temperature cycling from -20C to 60C with rapid transitions between extremes
– Humidity levels fluctuating between 35% RH and 85% RH
– Applied electrical load switching on and off

Throughout the aging test, critical performance characteristics of the ballast are continuously monitored. This includes ignition voltage, power factor, lamp current crest factor, and abnormal sparking or arcing. If any ballast fails during the aging test, the entire batch is quarantined for root cause analysis.

The typical aging test duration for Haisen UV ballasts is 1000 hours. Only after successfully completing the rigorous aging test are the ballasts approved for packaging and shipment to customers. The aging tests validate the inherent ruggedness and reliability of Haisen’s UV ballast designs.

9.Packing & Shipping

After passing all the quality control tests, the UV ballasts are ready to be packed and shipped to customers. Haisen takes great care in the packing process to ensure the products arrive safely.

The ballasts are wrapped in protective foam or bubble wrap to prevent damage during transit. Shock-absorbent packaging materials like foam, air bags, and corrugated cardboard are used inside the shipping boxes. The goal is to minimize any vibration, shock, or drop impact during transportation.

Custom printing and labeling can be added to the packaging upon request. This allows customers to easily identify the contents. The Haisen logo and key product information is printed on every box.

Once packed, the boxes are arranged on pallets and stretch wrapped. This secures the load and prevents individual boxes from falling off. The pallets are then loaded into trucks or shipping containers destined for customers.

Haisen has an export department that handles all the necessary documentation and procedures for international shipments. This includes commercial invoices, packing lists, shipping labels, and customs clearance paperwork.

Deliveries are trackable so customers can monitor the status during transit. Haisen aims to deliver orders on time and in perfect condition thanks to its careful packing and shipping processes. This level of service has helped build trust and satisfaction with UV ballast buyers worldwide.

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