The Adjusta-Watt® 600 is a software controlled digital ballast that has been designed to give the most selective growers the ultimate versatility and performance from a single lighting system.



The Adjusta-Watt® Digital Ballast allows the operation different wattage lamps simply by adjusting the dial on the ballast to match the lamp you are using. Depending on the model, the ballast will run either 250w, 400w and 600w lamps OR 400w, 600w and 1000w lamps. Each lamp will be operated to the exact specification that the lamp requires.

Smart Step Technology

By turning the dial on the Adjusta-Watt® Digital Ballast you can step down the output of the lamp. Just turn the dial again to step back to full power.


The Over-Drive feature increases the output of the ballasts highest wattage lamp to achieve maximum performance from the lamp. 

Smart Start™ Ignition Control

This revolutionary feature, unique to all of our products, makes the Adjusta-Watt® Digital Ballast the safest and most reliable ballast when used in automated multiple lamp applications. When multiple units are connected to the same mains circuit, our integrated Ignition Control software will completely balance the electrical draw by igniting one lamp at a time to prevent electrical surges and spikes that can overload the mains circuit and trip circuit breaking systems. For further efficiency, this feature is activated alongside our ‘Soft Start Technology’.

Soft Start Technology

Soft Start Technology prolongs lamp life by stopping current rush to the lamp and preventing lamp overload. When the ballast is started from cold there will be a 3 second fixed delay before ignition. After ignition there will be a series of random 0-2 second delays before full brightness is reached after approximately 3-5 minutes. Soft Start Technology is also activated when increasing and decreasing power to the lamp using the ‘Smart-Step’ feature.

Re-Strike of Hot Lamp after Mains Failure

The Adjusta-Watt® Digital Ballast uses a timed re-strike system that prevents the ballast from re-striking a hot lamp after a power failure. If a hot lamp is detected, the re-strike will be delayed for 60 second intervals until the lamp has cooled sufficiently to be re-ignited. Re-ignition is then controlled by ‘SmartStart Ignition Control’ and ‘Soft Start Technology’ software.

Lamp Compatibility

The Adjusta-Watt® Digital Ballast is suitable for use with Sodium, Metal Halide and Dual Spectrum lamps. For best results always use a good quality lamp from a major manufacturer.

Automatic Frequency Adjustment

The Adjusta-Watt® Digital Ballast automatically adjusts its output frequency to maintain a constant output regardless of input power fluctuations and ageing lamps. This also prevents ‘lamp flicker’.

Intelligent Circuit Protection

The Adjusta-Watt® Digital Ballast uses a sophisticated software controlled circuit breaking system that is not seen in other manufacturer’s ballasts. The system protects against a series of faults including: Open Circuit Protection, Short Circuit Protection, Over Voltage Protection, Under Voltage Protection and Over Temperature Protection. On Ignition the ballast performs a 3 second test of the circuit and in the event of a fault the ballast will go into protection mode to avoid damage to the ballast and lamp. 

Running Temperature

The Adjusta-Watt® Digital Ballasts’ unique case design acts as a superior heat sink making the ballast extremely cool running without the need for internal fans.

RF Shielding

The Adjusta-Watt® Digital Ballast has superior RF Shielding with Total Harmonic Distortion (THD) of less than 7% meaning it will not interfere with television or radio equipment.

Silent Operation

The Adjusta-Watt® Digital Ballast has no noisy internal fans and is completely silent in operation. 

High Energy Efficiency

The Adjusta-Watt® Digital Ballast is up to 30% more efficient than a magnetic ballast producing more lumens of light per watt of consumed energy. Efficiency does not diminish and is maintained for the entire life of the unit.


Output: 600w/400w/250w + Over-Drive

Rated Voltage: 240V 50/60Hz

Rated Current: 2.5A, 1.67A, 1A (2.63A – Over-Drive)

Rated Power: 630w

Working Voltage: 165~265VAC

Power Factor: >0.99

Efficiency: >94%

THD: %

Case Temp under normal op: < 25 °C

Operating Temperature: -15°C~+50°C

Adjusta-Watt 600w Kit