... time<5sProtection functionInhibition of acoustic resonance,Output open protection,Short circuit protection,Lamp bad protectionSafety certificationUL(E351712) ... gymnasium,plastic tents. ·Full protection:protection for open loop,short loop and hot lamp restart. ·Constant power ... installation,no outside starter,no compensation capacitance. ·Short start current time. 1000W High power electronic ballast