GE432MAX-N/ULTRA UltraMax Electronic High Efficiency Multivolt Instant Start Ballast Energy saving high efficiency instant start electronic ballast (&gt; 90%) Multi-Voltage Technology handles voltage from 120 to 277V UL Type CC Rating provides protection against arcing in electrical devices Anti-Striation Control for better light quality, with no striations UL 55C Ambient Rating - High Temperature Protection Circuit, Cold temperature -20F Minimum Starting Temperature