Dual USB Cigarette Lighter Adapter, QC 3.0/USB, 12-24V/80W

4 in 1 cigarette lighter adapter has 5 protection functions: over-voltage protection, over-current protection, over-heating protection, over-load protection and short-circuit protection. It adopts 2 special designs. One is a LCD display that can show the real time voltage and current at the same time. The other is 2 orange LED ring lights, which can indicate user the position of 2 cigarette lighter sockets.

Specification:

Tips: Whether the more USB ports of the adapter, the slower the charging speed?
The charging speed is determined by the output current of the USB port. The current depends on the voltage, not on the number of USB ports.
Because the current has been divided, there is no interference between each other. The reason why cigarette lighter adapter manufacturers design multiple USB ports is mainly to facilitate car owners to charge multiple electronic products at the same time.
However, there are some factories who mark low-current car adapters as high-current one. Because the larger the current output, the higher the requirements for materials and production processes.
The fastest test method is to use a professional test instrument to measure. But ordinary car owners don't have this professional equipment, so they can only observe the charging status. If use a cigarette lighter adapter charging mobile phone and tablet computer separately, both devices charging time is slow and they heat very serious, that is, the current is not up to standard. It is best to replace the cigarette lighter adapter quickly.