Product Overview Electromagnetic Ballasts | Universalâ?¢ Ballast | Number of Lamps 2 Rapid Start | 277 Volts | I-Pack | Minimum Start Temperature 50 deg F | Dimensions 9-1/2 L x 2-3/8 W x 1-1/2 H x 8-57/64 M x 1-11/16 in X
