1. Switch with intelligent chip, in case of short circuit, over current and other abnormal conditions, the switch will be automatically disconnected without damaging the equipment. 2. With waterproof cover is safer. 3. Total output: 16A 4. Inner hole diameter: 21mm 5. Suitable for high power equipment such as car USB, driving record, car vacuum cleaner etc.. 6. Cable length: 95cm 7. Wire gauge: 18AWG
