400W Magnetic Ballast

This 400W metal cased ballast converts mains electricity to the correct voltage and current to start-up and power a 400 Watt HPS or MH lamp by using a traditional magnetic core & coil system.

This 400W ballast is reliable, well made with quality components, the unit is fuse protected against short circuits and it performs well for a very long time.

Like all core and coil type ballasts, this ballast runs warm in use and should be located on a flat, firm, surface (not carpet) in a well ventilated place and should never be covered.

The wattage of your ballast MUST match the wattage of the lamp you are using or there will be a high risk of fires or equipment damage. Always consider the inrush current drawn by a ballast when it is switched on. Your mains supply may trip out if several come on at the same time

. Please note that in the event of an interruption to the mains supply, the ballast will not be able to restart the lamp until it has cooled back down.