1External power supply can used for LED fill light, monitor, image transmission and other equipment power supply. 2Adopts multiple protection technology, such as short circuit protection, overvoltage protection and overcurrent protection, ensuring absolute safety during using process. 3Professional manufacturing, using spring wire length 30-100cm. 4Made of high quality ABS material, sturdy, durable and long service life. 5Small size and lightweight, easy to carry and store, convenient to use.Condition: 100% Item Type: Dummy Battery Model: F550 Material: ABS Color: Black Suitable Range: Photography Light, Monitor Quantity: 1PCS Input Voltage: 10-20V Output Voltage: 8V/3A Interface: D-TAP Suitable Battery: V Port Battery Decoding Mode: Non Decoding(Not Used for Camera) Weight: Approx. 65g Cable Length: Approx. 30-100cm/11.81-39.37inch 1 x Dummy Battery