HiWatt 2

Programmable Electronic Arc Lamp Ballast

A dual-processor controlled, solid-state switching power supply UV arc lamp ballast

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Product Summary

The HiWatt 2 UV programmable electronic arc lamp ballast is a dual-processor controlled, solid-state switching power supply. It consists of two power stages: a square wave AC output converter and igniter for powering a mercury vapor or halide arc lamp, and an auxiliary DC power supply for providing 24VDC (6A) for user controls and cooling fans.

The HiWatt 2 ballasts are designed to be factory or customer software configurable (via PC serial port) to allow the unit to adapt to a wide range of lamp types and utility power sources. This capability allows the unit to power an arc lamp in the range of 1kW–20kW, with lamp voltages of 200–850V, from single or three-phase AC sources of 208 / 240 / 480V 60Hz—200 / 230 / 380 / 415V 50Hz.

The electronic ballast may be used to power two arc lamps in a series as long as the total composite voltage does not exceed 850V. This programmability makes the HiWatt 2 a truly universal arc lamp ballast that can be used as a single unit solution for powering many types of lamps from power sources worldwide.

PC/PLC Control Interface

The HiWatt 2 can communicate with customer-connected controllers or PCs via optically isolated digital logic signals, RS485 serial port or USB port. The logic signals include status lines for lamp ignited, lamp ready (warm-up-complete) and unit alarm, as well as control signals for lamp enable / disable and lamp dimming (via PWM control, pulse frequency or 0–10V).

A lamp cooling blower control is also provided with a blower on / off signal, air temperature / flow regulation and lamp temperature monitoring. The unit can optionally control motorized or pneumatic lamp shutters.

Units can also be networked to provide a customer interface to multiple HiWatt 2 slave units from the RS485 ports. This option will allow interface with multiple lamp systems cascaded on a single high-speed product line, which can still be controlled and monitored as a single system with much higher power capability.

Part #UV2978
Lamp Power1,000–20,000W
Input Voltage200–480VAC, 1 or 3 phase (programmable)
Input Current (Max)30 Amps maximum
System TypeContinuous mode arc lamp power supply
Size (H x W x D)20.11 x 8.71 x 4.13"
Weight26.5 lbs.
Lamp Output Volts200–850 VRMS
Low Voltage Outputs24VDC at 6 Amp
Other FeaturesLamp temp control, USB, RS485, digital I/O signals
Accessories Part Numbers
Part No.ItemDescription
UV4342HiWatt Interface Configuration SoftwareUSB flash drive, used for programming monitor & control
UV1825Touch Screen Panel PC1GB Ram, 160GB HDD, Windows Embedded OS
UV3384USB to Isolated RS485 / RS422 AdapterPort-powered, includes USB cable, terminal block and drivers CD
UV4038Shielded Cat. 5 USOC-4 Patch Cable, RJ11 / RJ11, 10.0 ftFor connecting UV3384 RS485 adapter to HiWatt
UV1810HiWatt Interface Touch Screen SoftwareCD ROM, network up to 8 ballasts
UV4036HiWatt 2 Ballast instruction manualUsage and maintenance info for HiWatt
UV1557Lamp output 3 position pluggable terminal blockLamp output mating connector
UV3224AC power input 4 position pluggable terminal blockAC input mating connector
UV3469DB15 female control signal terminal block for field terminationFor field termination
UV1598DB25 female control signal terminal blockFor field termination
UV3470DB15 control signal terminal block gender changer, male / maleUsed with UV3469
UV1596DB25 control signal terminal block gender changer, male / maleUsed with UV1598
UV2260Airflow damper w/ actuatorLamp temperature regulator, 6” diameter
UV1678Thermistor, lamp temperature4" long, 3/16" diameter, 10K ohms
UV1679Thermistor compression fitting1.81" long, 3/16" dia, .25" male NPT

Payment Information

Purchase Orders

To open a new customer account with us, please send the following information regarding your company:

  • Company name
  • Company contact
  • “Bill To” address
  • Telephone and fax numbers
  • Three trade references

Please be sure to include the following information on your purchase requests to ensure quick and accurate processing and shipment of your order:

  • Complete “Ship To” address, including postal code where applicable
  • Required shipping method

Unless otherwise specified, all shipments will be sent via UPS.

New Customer Form | Credit Application


Fax & Email Orders

To place an order, send your signed purchase order and company information (see above) to the attention of our Sales Department by fax at 413.731.7767 or by email to [email protected].


Phone Orders (U.S. Customers Only)

We are happy to process your product orders by phone at 413.579.6406. We accept MasterCard, Visa, Discover and American Express for phone order payments (see Credit Card Order information).


Credit Card Orders


In order for us to accurately and safely process your credit card orders, we request that you supply us with complete account, cardholder and shipping information. Please complete the following form and send it to us via email or fax, or be prepared to supply the information over the phone to one of our customer service representatives.

Credit Card Order Form


International Orders

We have extensive experience processing and fulfilling international as well as domestic orders. We have successfully shipped products to destinations around the globe.

To contact us from outside the United States, call 00.1.413.579.6406 or send us an email message at [email protected]

For first-time international orders, prepayment is required. Payments may be made by certified bank check or direct wiring of funds (this information must be provided at time of order).



We offer financing through CrestCapital. Learn more about financing the purchase of equipment by clicking here for instant payment quotes and/or to apply online.


Shopping Online

uvitron shopping

To order UV curing accessories online, visit our online store. We offer a variety of lamps, radiometers, light guides and other accessories for our flood and spot curing systems.


Return Policy

All product returns must be first authorized by our Customer Service department. A Uvitron service representative will issue a Return Material Authorization Number, which must be printed clearly on the top of the shipping carton and on the accompanying packing slip. Any unauthorized returns will be refused by our Receiving Department, so please call us first.

Returned products or demonstration units must be received in new condition, with no damage, dents, scratches or adhesive stains. Products should also be sent in the original packaging and shipping cartons to ensure proper protection during return transit. Some items may be subject to restocking fees. Account credits or refunds will be issued after returned equipment is received and inspected. Unfortunately, we cannot accept custom or non-stocked items returned for credit or refund.

To speak with a customer service representative, call 413.579.6406 or email [email protected].

HiWatt 2

Request Quote for HiWatt 2

Request a quote for the version of the HiWatt 2 UV arc lamp ballast that best fits your needs.

Below you can choose from the different available models, components and accessories for this system. You can select each item one at a time or begin with the Default Configuration as a basis, and build from there.

If you have any questions contact us directly.

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UV2978 - HiWatt2-1

HiWatt 2 Power Supply

Programmable, constant power regulated, solid-state switching power supply w/ digital logic monitoring & control signals

HiWatt 2, Electronic UV Arc Lamp Ballast

Programmable, constant power regulated, solid-state switching power supply w/ digital logic monitoring & control signals


Click any of the accessories below that you would like included in your quote. To view or price more accessories or replacement parts, visit our online store.

USB to Isolated RS485 / RS422 Adapter - UV3384

Port-powered, includes USB cable, terminal block and drivers CD

Shielded Cat. 5 USOC-4 Patch Cable, RJ11 / RJ11, 10.0 ft - UV4038

For connecting UV3384 RS485 adapter to HiWatt

10KW 25 inch arc length UVA lamp - UV2423

10KW UVA enhanced arc lamp for HiWatt 2 ballast

10KW 25 inch arc length UVB lamp - UV1831

10KW UVB enhanced arc lamp for HiWatt 2 ballast

10KW 25 inch arc length Visible (420nm) lamp - UV4446

10KW Visible enhanced arc lamp (420nm peak) for HiWatt 2 ballast

19.2KW 48" arc length UVA lamp - UV4339

19.2KW UVA enhanced arc lamp for HiWatt 2 ballast

19.2KW 48 inch arc length UVB lamp - UV4918

19.2KW UVB enhanced arc lamp for HiWatt 2 ballast

19.2KW 48 inch arc length Visible (420nm) lamp - UV4447

19.2KW Visible enhanced arc lamp (420nm peak) for HiWatt 2 ballast

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