"ADVANCE" MAGNETIC BALLAST*3.0625" L x 1.375" W x 1.18"H*Magnetic ballast for (1)F15T12, F20T12, FC6TP, orFC8T9 lamp*For residential application*Preheat starter requirednormal power factor*Operates on 10V systems*Input voltage 120V*Input frequency 60 hertz*Max THD percent: 10%*Minimum start temperature 50deg. F*UL listed and CSA certified*Boxed