Who We Are

Haisen is one of the world’s leading UV Ballast manufacturers providing OEM and ODM service around the globe. We specialize in offer ultraviolet solutions and manufacturing high quality electronic ballasts for various Germicidal lamps,including low pressure 185nm/254nm, UVC germicidal medical,Amalgam,Medium-pressure UV lamp, Ozone free and Ozone types, for all application types  such as air sterilization, surface disinfection and water purification. Our state-of-the-art design, Engineering, Quality control, and Production capabilities enable our customers benefit from our extensive experience and combined resources.

Low-pressure UV lamp and Medium-pressure UV lamp are the key components in water treatment and curing systems, the UV lamp ballast have a significant impact on the overall performance of UV lamps and UV systems. We can provide electronic ballasts that match all the parameters of your UV lights such as lamp power, lamp current, preheat time , preheat current and others. The matched high-quality electronic ballasts for UVC bulbs can improve the efficiency, stability and lifespan of your UV equipment, and also will be compatible with your power grid, reduce the power loss, reducing overheating and degradation of other connected devices, be more intelligent and controllable , easier to use.

Haisen UV ballasts benefits

High efficiency and high Power Factor
Preheat start for optimal lamp life
Constant power or constant lamp current
With switch and LED indicator
0-10V, PWM, RS485 Dimming
UL/CAS, RoHS, CE, SAA, 3C certificates

Standard Output UV Ballast

The following UV ballasts are designed to run standard output UV germicidal lights.The lamps operate typically at 425 mA. Although standard UV lamps emit lower UV Intensity then high output UV lamps, they are widely used in residential drinking water UV system and air purification markets due to lower cost.

High Output UV Ballast

The following UV ballasts are designed for High-output lamps have hot cathode filaments sized to operate from 800 up to 1200 mA. Gas mixture and pressure are optimized to deliver a much higher UV-C output while maintaining long lamp life, in the same lamp dimensions as standard-output lamps, but High Output (HO) lamps can emit 66% more UV output when compared to standard lamps. HO lamps offer system designers unique opportunities to decrease the number of lamps required without compromising functionality of the system. High output UV lamps mainly used in commercial water disinfection and air purification market.

Amalgam UV Lamp Ballast

The following UV ballasts are suitable for Amalgam UV lamps, Amalgam lamps have hot cathode filaments sized to operate at 1200 mA to 8000mA. The gas mixture, pressure, and sometimes lamp diameter have been optimized for delivering even higher UV output without deteriorating lamp life. UV lamps use electrodes between which the electrical discharge runs and are filled with a noble gas such as argon, neon, or a mix thereof. A small amount of mercury is present in the envelope. The electrodes are very important for the lamp’s behavior. Amalgam UV lamps mainly used for industrial and municipal water treatment, swimming pool, aquarium disinfection and Agricultural irrigation disinfection.

Medium Pressure UV Lamp Ballast

The following UV ballasts are suitable for Medium Pressure UV lamps, The wavelength range of medium pressure lamp ultraviolet is 200nm-400nm and can emit UV density up to 100W/cm2, they mainly used to kill bacteria, viruses and other microorganisms in water, and is widely used in sewage water treatment, ballast water disinfection and UV Curing filed. The advantage of medium pressure UV lamp is longer service life and more faster disinfection speed then low pressure UV lampls, and also they can automatically detect the ultraviolet intensity

UV Ballast FAQs

Usually UV lamp life is from 9000 to 12000 hours depending on different brands, the best can reach to 16000 hours, normally using one year you need to replace the Germicidal lamp because the UV output dose will get weaker and weaker and affect the sterilization effect.

UV ballast lifespan is much longer then UV lamp. Mid-end ballasts can generally be used for 3-5 years when the parameters of the electronic ballast are completely matched with the UV lamps. High-end ballasts typically have a lifespan of 5-10 years. The design service life of Haisen UV ballast is generally 10 years, many our customers use our ballasts more than 10 years and still serve well.

A UV system is composed of UV lights, UV ballasts, as well as UV Sensors.Choosing a suitable ballast not only ensures the normal operation of the UV system, but also can ensure the lifespan of the UV lamp.
How to choose best suitable ballasts for your UV bulbs and system? You need to consider the following factors such as UV lamp brand, Model No and parameter, Input Voltage, ballast size, signal feedback and control etc.

1.Confirm UV ballast parameters

Once we get the UV lamp brand, Model No, lamp current,lamp power, preheat current, preheat time, we can choose the same range current and Power ballast for you.It is important to know the brand of UV lamps, as different UV lamps have different filament preheating currents and preheating times, we need to adjust our Ballast parameter according to these info so that totally match your UV lights.


2. Confirm UV Ballast start-up type

If your UV lamp are 2 pins ,it need to use our Instant start electronic ballasts(EPL)
If your UV lamp are 4 pins, it need to use our Preheat start electronic ballasts(EPS)


3. Select ballast Input Voltage

Our UV ballasts have 4 kinds input Voltage
1.100-130V Low Pressure
2.220-240V High Pressure
3.110-240V Universal Voltage
4.110-277V Universal Voltage


4.Choose waterproof and dustproof type

No waterproof: If the ballasts are installed in control box and no need to waterproof request, you can use our terminal type UV ballast (IP20 Version)
Waterproof version: if the ballasts have the risk of rain (IP65) or needs socked in water (IP68), you need to choose our waterproof ballast.


5. UV Lamp Status feedback

Sometimes, you need to know the UV lamp status, so the ballast need to show the signal.There are 3 types feedback you can choose, LED Indication, 5V signal and relay contacts

1) LED Indication, Status indication via gree/red LED Light
Green light on: UV lamp on
Red light on: UV lamp fault

2) 5V Signal: Status indication via 5V DC signal output indicators
DC 5V: lamp on
DC 0V: lamp fault
Also can connect LED

3) Free Relay Contacts
Status forwarding through potential free relay contacts for lamp on/lamp fault
Relay activated:lamp on


6.Remote Control or dimming request

There are two ways to remotely control, one is to use a ballast with remote switch function for remote control on/off. Another way is to use intelligent ballasts with remote communication interfaces such as RS232/RS485.
Some ballasts also have dimming function, which can be divided into PWM dimming, 0-10V voltage dimming, and 4-20mA current dimming according to the dimming method. For some ballasts with communication control functions, remote switching and dimming can be choose.


7. Display of UV lamp usage time

In some applications, it is necessary to monitor the service life of UV lamps and remind them to replace them regularly, Intelligent ballasts with timer can be used, our Ballast can show 365 days or 9000 hours according to your request.

With the above suggestions and steps , you can choose the suitable UV ballasts for your UV sterilization system.
The simple way is you send us the datasheet of your UV lamps, or send the UV lamp tube to our company. After testing, we will match you the most suitable ballasts.

As a manufacturer of UV disinfection systems, it’s essential to have a reliable and efficient UV ballast to power your UV lamp. While standard UV ballasts are not available in your UV systems, customized ballast can meet your specific requirements, leading to enhanced performance, compatibility, and efficiency.

At Haisen, we offer customized UV ballasts to ensure that your UV disinfection systems operate optimally. Here’s a step-by-step guide on how to customize UV ballasts with Haisen.

Step 1: Determine Your UV Ballast Requirements

The first step in customizing a UV ballast is to assess your system requirements. You need to determine the UV lamp parameters, including current, power, preheat current, and preheat time. These parameters can vary depending on the number of lamps you’re using, the type of UV lamp, and your specific system requirements. You also need to decide on any additional functions you need on the UV ballast, such as alarms or switching controls.
Then, you need to determine the size of the UV ballast you require, considering factors such as the available space in your system and the ballast’s power output. Once you have these requirements defined, you can proceed to the next step.

Step 2: Determine Design Cost, Lead Time, and MOQ by Haisen

Haisen provides design services for customized UV ballasts. After you send us your UV ballast requirements, we’ll provide you with the design cost, lead time, and minimum order quantity (MOQ). Typically, the lead time for customized ballasts sample from 15 to 30 days, depending on the complexity of the design. Usually the MOQ is 500-1000 pcs for ODM products

Step 3: Transfer the Design Cost to Haisen

Once you agree to the design cost and lead time, you can transfer the design cost to Haisen. Due to the specially customized ballast, our engineers have to spend a lot of time drawing PCB boards. We need to find new suppliers and make samples, which requires a lot of manpower and material resourcesThe design cost ensures that our engineers have the resources required to design the customized UV ballast to your specifications.

Step 4: Haisen Starts Design and Makes 1-2 Free Samples

After receiving the design cost, Haisen’s engineers will start designing the customized UV ballast to your specifications. We may provide a 3D design to give you an idea of what the final product will look like.
Once the design is complete, we’ll manufacture 1-2 free samples for you to test. These samples will allow you to verify that the ballasts meet your requirements and function as needed.

Step 5: Confirm Samples or Propose Improvement Suggestions

After testing the free samples, you can confirm that they meet your requirements, or you can propose improvement suggestions. If you want to make changes, we’ll work with you to modify the ballast until it meets your requirements.

Step 6: Sample is Finally Confirmed and Sealed

After any changes are made to the samples, we’ll manufacture a final version of the UV ballast for you to confirm. Once you confirm that it meets your requirements, we’ll seal the design, and you can proceed to mass production.

Step 7: Mass Production

After the sample is confirmed and sealed, we can proceed to mass production according to your normal order later.Haisen will manufacture as many customized UV ballasts as you need to power your UV disinfection systems.

UV lamp is a device that uses ultraviolet to kill bacteria, viruses, and other microorganisms. The UV electronic ballast is an important component of the ultraviolet lamp, which controls the current and voltage of the uv lamp tube to ensure its normal operation. This blog will tell you how to test and judging the quality of uv ballast

1.Appearance inspection

Firstly,check the appearance of the UV electronic ballast to see if there is any cracks, deformations, discoloration, or other phenomena. If these problems occur, it may cause the unstable of the ballast current and voltage so that affecting the sterilization effect.

2.Voltage and current inspection

Secondly, the quality of electronic ballasts can be judged by detecting voltage and current. Generally speaking, the voltage and current of an electronic ballast are fixed. If abnormal values are detected, it indicates that there is a problem with the electronic ballast.

3.Test the operation of ultraviolet lamps

Thirdly, the operation of the UV lamp can also be tested to determine the quality of the electronic ballast. If the ultraviolet lamp tube frequently flashes or emits noise in a short period of time, it indicates that there is a problem with the electronic ballast.

Conclusion: The quality of uv electronic ballasts directly affects the sterilization effect of Germicidal lamps, so it is necessary to carefully inspect and maintain them. I hope the methods and precautions introduced in this article can be helpful to everyone.

The UV lamp ballast is the core component of the UV lamp and UV system, which converts the unstable alternating current into a stable direct current and provides high-frequency pulses to make the UV lamp work.

The process of lighting up ultraviolet lamps with UV ballast mainly includes multiple stages such as power filtering, voltage transformation, rectification, filtering, voltage regulation, oscillation, etc.

Firstly, power filtering is to ensure the quality of the input current of the power supply, making it stable and clean.

Secondly, the transformer increases or decreases the input voltage of the power supply to meet the working requirements of the ultraviolet lamp.

Thirdly, rectification converts the AC current output by the transformer into DC current

Fourthly, the filtering process is aimed at filtering out clutter and ripple in the DC current, making it more stable

Fifthly, the voltage regulation process is to ensure that the DC current input to the UV lamp is stable within a certain voltage range.

Finally, the oscillation stage by capacitance and inductance provides high-frequency pulses to make the UV lamp work, and the current during the operation of the lamp is reasonably controlled.

The closer the frequency of inductance and capacitance is,the resonance will occur.When these two frequencies coincide,a high voltage will be instantly generated,which is the starting voltage of the ballast.The starting voltage is the maximum output load of the electronic ballast,and the starting voltage must be higher than the starting voltage of the lamp tube to turn on the ultraviolet lamp.

After the UV light is turned on, the ballast provides a normal current to the UV light to maintain its operation

Through the above steps, unstable power input can be converted into stable DC current, and the UV lamp can work stably

There are three main ballast start up types of UV ballast: Instant Start Ballasts (Haisen EPL Series), Rapid Start Ballasts (Haisen EPW series) and Preheat Start Ballasts (Hiasen EPS series). Knowing these three features is important when matching your UV lamp and design your UV systems.

Instant Start UV Ballast ( EPL Series)

Ballasts that instantly lights up ultraviolet lamps without preheating the filamentFor situations where the usage environment is relatively good, frequent start-up is not required, and the budget for ballasts is limited, fast start or instant start ballasts can be used,Switch on/off less than 4 times a day, normally matched standard output UV lamp for Air sterilization use.

Rapid Start UV Ballast (EPW Series)

For situations where the usage environment is relatively good, frequent start-up is not required, and the budget for ballasts is limited, fast start or instant start ballasts can be used,Switch on/off less than 4 times a day, normally matched standard output UV lamp Air sterilization use.

Preheat Start UV Ballast ( EPS Series)

For situations with frequent switching on/off, low working environment temperature, high lifespan and reliability requirements, and the use of mercury or High output UV lamps, ballasts with preheat start function need to be use, these ballasts normally used for water treatment market.

UV lamp ballasts and fluorescent ballasts are different in circuit structure and function, so they are usually not interchangeable. UV lamp ballasts are specifically designed for UV lamps, with high-frequency circuit design and specific current and voltage regulation functions to ensure the safe and effective operation of UV lamps. By contrast, fluorescent ballasts may not be suitable for UV lamps as they have not been optimized for this specific purpose.

fluorescent ballasts are mainly used to drive light sources such as ordinary incandescent lamps, fluorescent lamps, or LED lamps, while UV lamp ballasts are specifically designed for UV lamps.

In terms of circuit structure, UV lamp ballasts usually use high-frequency circuit design, but fluorescent ballasts may use low-frequency circuits.

The special ultraviolet applications , such as ultraviolet disinfection lamps, sterilization lamps, and photo therapy lamps in the medical industry, require to use of specialized ultraviolet lamp ballasts to precisely control the current and voltage.

Therefore, UV lamp ballasts should not be used for non UV lamps unless it is ensured that the selected ballast is perfectly matched with the ultraviolet lamp, and vice versa. Doing so may cause the lamp to malfunction or damage the lamp itself

1.UV lamp is not bright enough, or the lamp tube turns red?

First check whether the lamp tube matches the UV ballast, then check if the working temperature is too low. Too low temperature can cause the lamp power not enough and turns red.


2 UV Lamps turns black

Input voltage error
Frequently turn on and turn off the UV lamps
Starting voltage is too high or mistake preheat time
UV ballast prehear current too high

check whether the lamp tube matches the UV ballast, make sure if too many time of turn on and turn off the UV lamp. If many times turn on the UV lamps one day, pls use our Preheat start models, if turn on/off lower than 4 time one day, pls choose our instant start models.


3.High surface temperature of UV ballast

Since the ballast is a power product, the heating is normal. As long as the surface temperature of the shell is lower than 70 ° C, it can work normally.If the customer feels overheated, they can cool down the ballast by air cooling


4.UV ballast have power , but UV lamp doesn’t turn on

Check the datasheet to see if the UV lamp matches the UV ballasts, and then check if UV lamp and UV ballast connect right


5.Ballast do not have respond

Check whether the power supply has power, whether the voltage is consistent with the ballast voltage, and whether the power line is connected correctly

There are two types of UV ballasts: Inductive ballasts and Electronic ballasts. Inductive ballasts are inductors made of copper wire wound on silicon steel sheets, which are heavy, high in energy consumption, have a high failure rate for unstable voltage situations, and cannot achieve automatic control and monitoring. They have gradually been replaced by electronic ballasts. Electronic ballasts have the advantages of energy saving, eliminating flicker, making UV lamps more stable, having a higher power factor, and extending the lifespan of lamps. Currently, electronic ballasts are mainly used in the market to match UV lamps.

There are obvious differences between low pressure and Medium Pressure UV lamps in wavelength,Effect,Structure.lifespan,Disinfection speed and Safety.

Definition and wavelength: The wavelength range of medium pressure lamp ultraviolet is 200nm-400nm, while the wavelength range of low pressure lamp ultraviolet is 100nm-280nm.

Effect: Low pressure lamp ultraviolet radiation is mainly used to kill bacteria, viruses and other microorganisms in the air, making the air fresher; Medium pressure ultraviolet lamp radiation is mainly used to kill bacteria, viruses and other microorganisms in water, and is widely used in water treatment and other fields.

Structure: Medium pressure ultraviolet lamps use xenon gas to emit ultraviolet rays, while low pressure ultraviolet lamps require the addition of liquid or vapor mercury to emit ultraviolet rays.

Lamp lifespan: The service life of medium pressure UV lamps is longer than that of low pressure UV lamps.

Disinfection speed: The disinfection speed of the medium pressure ultraviolet sterilizer is faster.

Safety: The medium pressure ultraviolet sterilizer can automatically detect the ultraviolet intensity of the environment during use, preventing ultraviolet leakage and making it safer and more reliable.

Application areas: The application areas of medium pressure ultraviolet and low pressure ultraviolet are different. Medium pressure ultraviolet is mainly used in swimming pool water, sewage treatment while low pressure ultraviolet is widely used in air purification, object surface disinfection and drinking water fields.

In summary, medium voltage ultraviolet and low voltage ultraviolet differ in terms of wavelength, efficacy, structure, lamp life, disinfection speed, and safety. Therefore, the selection should be based on actual needs and the environment.

Our Factory

We are a professional OEM/ODM UV Ballast Manufacturer In China Since 2012

Premium Quality In Our Dust-Free Plant

Haisen is an ISO 9001 approved UV Ballast manufacturer in China. We offer all kinds of UV electronic ballasts for your choice. We have a professional team researching and producing new products with high-quality guaranteed. It’s our pleasure to provide you with excellent products at competitive prices with good service

Our Certificates

Our products have Passed  CE, RoSH, UL,CSA, ISO9001, ISO45001,ISO14001 Certification

Haisen Certificaets
Haisen Ul
ISO 9001 Haisen

Why Choose Us

Haisen have cooperated with many famous UV water /Air brands in the world  around 10 years due to our following advantages

Expert Craftmanship

Our Six engineers, with an average experience of more than 10 years, know well how to satisfy all kinds of your needs.

Low Repair Rate

Due to certificated raw materials and mature craftsmanship, the repair rate of our products is very low. Based on our 10-year records of customer repairs, our average repair rate is less than 0.05%

Long Time Warranty

We value partnership between us and clients. All our UV Ballasts come with a 2-5 years Warranty. During the warranty period, new free products will be provide if there is any non-human damage.


We can carry out flexible production according to your project to meet your needs for different quantities.

Better Price

A close relationship with our suppliers of raw materials gives us en edge in negotiating the price

Excellent After Sales Service

Once we get a customer complaint about products, we will provide a satisfactory to our customers within 24-48 hours. 

Our UV Ballast Features

Our UV power supplies have many features which can perfectly match the UV lights inside your UV equipment,protect your UV lights ,extend their lifespan

♦ Protecting and Extending Life of Ultraviolet Germicidal Lamps

♦ Constant Current Output and Will Not Generate Overload

♦ 110-240V Universal Input Voltage Suitable for Global Customers

♦ High Efficiency and Low Heat Dissipation

♦ UL,CSA, CE, RoHS Approval Insure the High Quality

♦ Fully Functional including Lamp Fault Contacts, 5V Signal, LED Indication,  Dip-Switch,Timer

♦ High Quality Aluminum Housing and Potting for Better Heat Dissipation

♦ Various Input & Output choices for customers

♦ Various Different Lamp Holders Can Be Provide

uv ballast High Output 75w, uv sensor

FAQs About UV Ballast Export

Haisen has been exporting UV Ballast for 10 years, and we have encountered all kinds of problems. Here are the most important concerns of our customers before closing the deal

Can I have a sample before placing the order?

Yes, we can provide samples for your evaluation and test. All the samples will be made according to your requirements. Samples will take 1-2 weeks for production. And 5-7 days for shipping by FEDEX

What is your leadtime for sample order?

Usually the sample order leadtime will be 1-2 weeks

What is your leadtime for normal order?

If the models you need we have stock, the leadtime will be 1 week.If the models you need are customized or we do not have stock, we will finish your order for 3-4 weeks from raw material purchasing and arrange production

Do Haisen provide OEM/ODM services?

Yes, We have gained a lot of experience on OEM and ODM of UV ballasts We have an experienced R&D team of 10+ members. We will strictly follow the principle that we won’t disclose or sell customer’s unique designs or jointly developed products to another third party

What is the MOQ for OEM/ODM service?

MOQ for OEM (Label) is 100 pcs/model.  MOQ for ODM products is 500 pcs/model

How can I get a quote?

Just send us an inquiry inside our website with detailed information such as UV lamp brands and model you use, with datasheet or parameter ,as well as quantity, etc. Or you can also send us an email at jack@haisenuv.com

What is Haisen company’s warranty policy?

Our warranty for UV ballasts is 2 years from goods received. If our UV ballasts damaged due to non human reasons during inside the warranty, we will provide our customer with brand new products and send with their next PO.

What Certificates do Haisen have?

Our products have CE, RoHS, UL/CSA,  ISO9001, ISO45001, ISO14001 certificates. suitable for global customers

How do Haisen ship the goods, and how long does it take to arrive?

For small quantity products, We usually ship by FedEx or TNT. It usually takes 5-7 days to arrive. For big quantity goods, we usually ship by Air or by sea, by air takes 5-7 days, by sea it depends on the distance ( 10-40 days)

Can you make OEM Label  with our brand name?

Yes, we can make OEM Label for your order, just send us your logo picture in high definition and our design dept will design for your confirmation before print

How to pay to Haisen?

Wire Transfer From All Countries.Wire transfer is the most frequently used method in international trading with the lowest transfer fee ($20 to $40 based on banks for any amount of USD payments).You can finish wire transfer by visiting local banks or using online wire transfer companies.Our company have.Our company has USD accounts, Euro accounts, and RMB accounts. You can choose the most favorable payment method

Is Haisen a Manufacturer or Trading company?

Haisen is manufacturer of UV ballasts and UV sensor,We have a 17000 square meter dust-free production workshop,we produced around 2 million pcs UV ballast per year meet with our global customers. 

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