ballast types


New member
how can someone tell what ballast they are useing . the one i have only has (ansi m57 ) anyone no what this mean ? and can tell me anything about it? i no that it is a 2x 175mh thats about it


New member
its an advance brand magnetic ballast

Model #71A55A0 / Description: 175W Metal Halide, ANSI: M57 ballast.


New member
ANSI assigns designations for magnetic ballasts depending on their capacity and type.
That M57 is a magnetic ballast for 175 watt metal halide bulb for US type probe start bulbs.