• 888-815-9763 Sales & Support Mon - Fri, 8am - 5pm PST. Instagram Facebook Twitter Google + Youtube


Complete Grow Tent Packages

Complete Grow Tent Packages

Start growing indoors today!

Complete Nutrient Packages

Complete Nutrient Packages

From beginner packages to advanced!

March Nutrients

Fabric Pot Blowout Sale

Gro Pro Fabric Pots on sale now!

Hydrobuilder Learning Center

Expert growing advice and tips!


Sun System Harvest Pro Switchable 400 Watt Ballast

Item #: 902444

Be the first to review this product

Sun System
Your Price:

In Stock

In stock items ship within 24 hours
FREE Shipping!
  • Buy 4 for $143.99 each and save 3%
  • Buy 8 for $140.99 each and save 5%
  • Buy 12 for $137.99 each and save 7%

100% Discreet Shipping Price Match Guarantee The HB Difference

Warranties | Returns & Replacements

Harvest Pro Switchable 400 Watt Ballast

Additional Images

Reflector Plug Type

This grow light ballast connects to a grow light reflector using the 'standard' plug type. Pair this item with Sun System, Solistek, Powerbox or any other brand that has this same graphic. Adapters are also available to allow for universal fitment between products. Learn more about reflector cord types


Ballast Type
Watt Output
Power Input
Cord Included

8ft 120V

5 Year

Cool Wall uniquely offers two barrier walls which help keep the critical components cool. The capacitor and ignitor temperatures are greatly reduced by being separate from the ballast core. Lower temperatures mean better reliability & longer life.

EZ Cap Door offers easy access to the capacitor in the event it needs to be replaced..another Sunlight Supply innovation!

The Power Pointer easily switches from 120 to 240 volt power! Simply unplug the detachable 8 foot 120 volt power cord (included), turn the Power Pointer arrow down for 240 volt power and plug in a 240 volt power cord. THAT'S IT! (240 volt power cord sold separately). Lamp cord receptacle accepts all Sun System lamp cords. Exclusive retention ears keep male plug securely fastened. Transformer Voltages: 120/208/240/277

High temperature capacitor ensures long lasting durability. Aluminum ballast enclosure is engineered to dissipate heat and keep components cool. Louvered end plates and heat slots help cool the ballast for years of trouble-free use!

Heavy duty handle for easy carrying or wall hanging.

5 year warranty.


Ballast Type Magnetic Ballast
Double Ended Optimized No
Dimmable No
Watts 400
Bulb(s) Included? No
Cord Length 8'
Voltage 120 - 208 - 240 - 277
Brand Sun System
SKU 902444
Weight (lb.) 28.1
Length (in.) 15.4
Width (in.) 10.4
Height (in.) 8.7
Warranty Yes
Free Shipping Yes
UPC 870883002015
CSA Listed No
ETL Listed No
UL Listed No

Shipping Info:

Free Shipping

Ships Via FedEx/UPS

Questions about this product?
Contact us for advice or more details. Our product specialists are here to help.
Email an Expert
Report an issue on this page

Why Shop with Hydrobuilder?
We offer the best service and support in the industry. Your complete satisfaction is our goal.