... temperature: -30 ~ +50 Centigrade; -22 ~ +122 FahrenheitOur Advantages:1, Low Energy-consumption, Timing Dimmer ballast2, High Power Factor, Low ... voltage range4, Energy-saving up to 15%-45%5, Open circuit protection, short circuit protection and overload protection,Ignition ... days2, Production lead time: 25 working days3, Packing: 1 pc ballast + manual / bubble bag, 6 pcs / carton, filled with Foam ...