Main Features: • iFlight XT30/ XT60 Smoke Stopper ,Every quad drone owner should have one • Input Voltage: 7-25V,this smoke stopper can help avoid damage when you power on your 2-6s quad drone for the first time • XT30 & XT60 (Input and Output),suit for FPV drone with XT30 or XT60 connector. • The LED indicator turns solid green in normal situation, • The LED indicator turns off and starts beeping in abnormal situation.