Ballast 250WPre switch!
Magnetic branded-ballast with 250 watt power for sodium lamps in your hemp cultivation!
For the control of a sodium lamp you need a ballast.
Digital ballasts afford towards the traditional magnetic ballasts plenty of advantages:
They are more efficient, adjustable, produce less heat and delivers independet to the input voltage a stable output.
A magnetic ballast is cheaper in the purchase, but loses by less optimal power supply conditions an intensity and is more unefficient over a longer periode.
power: 250 W
voltage: 230 V